If someone came out with a elongated overall length of 6.5 creedmoor that traveled at 3300fps from a 20 inch barrel, do you think people would buy it and use it over regular creedmoor?

yeah

I bet you a million dollars it has for 30 years

7mm Rem Mag shits on it.

>>63833130
>>63833139
>>63833145
But how much would it have to weigh? Would it normally weigh between 120 to 140 grains or would you want it to weigh even moor?

>>63833173
350

>>63833127 (OP)
Are you thinking of...6.5 swede???

>>63833127 (OP)
>If someone came out with a elongated overall length of 6.5 creedmoor that traveled at 3300fps from a 20 inch barrel, do you think people would buy it and use it over regular creedmoor?
No. There's a million wildcats if you really want to ultra min/max for your particular autism, but what makes 6.5cm popular is that it offers some modest benefits without any significant downsides and managed the extremely rare feat of snowballing into ultra mass production and thus getting cheap (as cheap as 308 now). It performs dependably with less recoil and still very acceptable barrel life. It goes as far as 95% of the population care about.

perhaps a 6.5x...55mm?

>>63833408
6.5 Sweden is slow as fuck.
>>63833492
Naw man, I don't doubt, that a creedmoor traveling 3500fps from a 20 inch barrel would be ignored.

>>63833539
>slow as fuck.
Depends entirely on the powder used anon, pushing 3k out of a 20" barrel with a 120 grain projo should be doable fairly reasonably.
It's got 10% more case capacity than creedmoor, creedmoor just has less taper and more shoulder angle.

>>63833130
Based yeah poster

>>63833573
yeah

>>63833539
>Naw man, I don't doubt, that a creedmoor traveling 3500fps from a 20 inch barrel would be ignored.
Cartridges aren't fucking magic anon. There's no secret fairy dust the whole industry is hiding. If you want to push into really high speeds you have to go more and more overbore and you get less efficient. You end up with more throat/barrel erosion and more recoil for the same size, or else you have to shrink the size. There isn't any getting away from this without getting exotic in ways the destroy the economics and again mean it's uninteresting to most people.

Creedmore? More like sneedmore

>>63833127 (OP)
Doubt you could get those velocities. 6.5 Winchester short mag using a 20" barrel can hit just under 3000fps with a 140grn bullet. Might be possible with a 127grn bullet.

6.5-300 Weatherby is about the limit of 6.5's and factory loads barely get to 3100fps.

>>63833564
>>63833539
A classic really good comp bench performer is 6.5-284. 7mm SAUM also has been real popular in f-class, and in serious elr there's stuff like 33xc. All steepen the shoulders and allow extreme consistency with really high bc bullets while keeping recoil manageable. But they're all known barrel burners too. This is fine in professional comp where money/pride may be on the line for a 1" difference at 1000-2000yd but makes zero sense for the average shooting enjoyer, who is definitely not limited by their cartridge.
>>63833611
Kind of funny/crazy to see this turn into a fudd joke so fast now that I think about it.

>>63833127 (OP)
With 6.5 creed’s barrel life as it is, I wouldn’t want 3300. 6.5 is great for PRS matches, but for hunting or even military purposes it doesn’t make much sense. Lowish barrel life, inside 500 yards .308 is as good or better. Outside 500 yards you want more payload like .300 win mag or whatever

>>63833645
lol wut? 4000 rounds of comp and more like 7000 rounds for hunting is plenty gudenuf. and 6.5 is solid out to 1000.
>300wm
lol that's like 1800-2400 rounds barrel life dude why would you whine about 6.5 and then suggest that.

>>63833879
>>63833645
Just use a chrome lined barrel instead, that way longer half life, and buy from a better barrel manufacture

>>63833127 (OP)
Isn't that the 6.5-284 works quite well

Sniper rifles aren't used in warfare anymore; everyone shooting long range is doing it for fun, and making it easy with supervelocity chamberings and 40x zoom stargazing telescopes isn't challenging and it isn't fun.

I will compliment Kevin Brittingham on trying to market long range suppressed low velocity shooting because that's where fun actually is.

>>63833978
Shut the fuck up fag. They are still used at the fucking squad level and up. How fucking retarded are you on a scale of one to ten? Orange?

>>63833564
Just reload 6.5 Japanese with some really spicy stuff, the Arisaka tan take it... probably.

>>63834026
>soldiers carry sniper rifles
>therefore sniper rifles are used!
>ignores the rest of my post
Cope. Drones rule the battlefield now and conventional infantry warfare is finished.

>>63833127 (OP)

>>63834076
Your fucking post is retarded. Your response is retarded. You are a child.

>>63833978
>Sniper rifles aren't used in warfare anymore
Ukraine has used them extensively though, so you're objectively wrong on that one. Granted they're using more exotic stuff too, and you could argue that this might be amongst the last gasps for serious armies (though it'll probably stay a thing in lower tier armies and rebels/militants for a longer period after).
>everyone shooting long range is doing it for fun
This is true though at least on /k/, if you're including competition in "fun" too which some might argue about.
>and making it easy with supervelocity chamberings and 40x zoom stargazing telescopes isn't challenging and it isn't fun.
No matter what you use there is nothing unchallenging for normal people once it gets to a mile let alone more. Or even 1000yd really. Of course a lot of people don't have the geography to try that casually.

Trying to push subs is actually a pretty cool alternative imo, I agree with you on that. You get a lot of the experience of super long range except you don't need super long range. For that matter, 22lr at 200-300yd even is pretty fun for dirt cheap.

>>63834123
>ad hominem argument
I accept your concession, ChatGPT.

>>63834181
You made a post that is counter to both common knowledge and my personal military experience with zero evidence to back it up.
YOU do not get a polite conversation. You bring nothing, you are dismissed with insults. Get used to it tard.

>>63834178
>>long rifle 22 at 300 yards
Fucking lol. Post your groups with a 22lr at 200.

please someone educate on me on this new 6.5 6.8 6. whatever nonsense. why cant we just use real fuckin nato instead? do these calibers offer more than a marginal improvement over real nato while not having too many downsides?

>>63834577
The economic system currently implemented nearly worldwide is based on infinitely compounding debt, which requires an equally infinite amount of novelty to spur an equally infinite amount of production and consumption
>tl;dr
capitalism

>>63834616
You're right

>>63834058
Barry sent one through an Arisaka loaded with straight pistol powder and it didn't kaboom.
They're fucking solid rifles.

>>63834386
Nta but my brother has a pretty sweet precision 22 setup and we were hitting a 12 inch gong every time at 330 after a few shots to find the wind. Eley match, b14r carbon in his mdt chassis

>>63833127 (OP)
Like the 6.53 Lazzeroni Scramjet?

>>63835801
I wish they had measured the velocity that it came screaming out of the barrel at.

Isn’t that basically 6.5 PRC? Or more accurately, a 30-06 necked to .264? I’d bet anything it’s been done before.

(Googling now)

Jesus Christ, it hasn’t been done. Mein gott. But there is a .270 Winchester, and that’s pretty close (.277 vs .264)

To answer your question, it will not be as popular as 6.5 creedmoor since it won’t be able to chamber in the extremely popular short action self-loading rifles (like the AR10). You’d be limited to 3.34” action length bolt guns and the odd proprietary 3.34” action “AR10” with very little parts commonality with the standard.

I pose my own question.

>is there any merit to a 3.34” mag-fed, high capacity, autoloading rifle? An AR5, let’s call it.

>>63833127 (OP)
That's literally 6.5 PRC. And no, people will probably continue to ignore it.

>>63836420
>Jesus Christ, it hasn’t been done.

Isn't that the 6.5x65 RWS?

6.5x68 Von Hofe Express aka Shüler aka RWS.

>>63836868
Is 30-06 its parent case?

>>63834577
Depends on your definition of marginal. Creedmore at least offers a clear advantage in certain situations but it's definitely an evolutionary improvement, not revolutionary. If you're not a competitive shooter, rarely shoot past 500 yards and you already have a rifle in .308 then, sure, just keep shooting what you know.

>>63836606
>That's literally 6.5 PRC. And no, people will probably continue to ignore it.
Kinda seems like it's in an awkward spot vs 7prc or 300prc, which have both seen decent uptake.
>>63837701
I'd call creedmore "marginal" in a positive way? I guess now that I think about it "marginal" often has a negative connotation, but when I use it regarding a round I've always meant as a contrast to "radical". Maybe "moderate" would be better. At any rate though, the difference in 6.5 vs 308 ballistics is definitely significant, it is measurably there and makes a difference. But it's not some radical improvement either, it's in the same rough bucket.

But that's a good thing, because it comes with no significant downsides either at this point, not even cost unless you use ultra fancy barrels (and if you do use $$$$ carbon that's your own call). I agree with you that I don't think it really offers any reason for someone to switch away from 308 they've invested in. But if someone was starting fresh I also don't think 308 offers any advantages in a bolt. In a battle rifle 308 still has some fun loads I don't think exist for 6.5 yet though.

>>63833127 (OP)
>What if we made it a magnum round that doesn't work in short actions
Shut the fuck up retard

>>63833127 (OP)
The appeal of 6.5 Creedmoor is it has lower recoil and a higher BC than .308, while using .308 mags and short actions like .308.

Elongating the cartridge OAL means you will need a long action or bigger, which opens up a whole slew of cartridges options that are very high performance and well established.

>>63839014
Who cares about short actions, make the ammo as long as possible, use an 8 inch long bolt action, i just want my creedmoor going 4000 fps from a 20 inch barrel

>>63839304
>Who cares about short actions
Anyone who cares about creedmoor.
>i have no idea what I'm talking about and think projectiles = cartridge
Yeah you've made that clear. Now fuck off or learn to reload retard.

>>63839433
Chill my dude, all I'm saying is that I want a oal creedmoor being 6 inches, I want it fast out of a 20 inch barrel, 4000fps to be specific.

>>63834386
I used to plink raccoons off our trash pile from 150 with your standard fudd scope from a standing position when I was a kid. I’m sure some autists have done 300 I just can’t imagine why.

>>63839593
And all we're saying is that you're a retard. Calm down and take your meds ok?

>>63833127 (OP)
Nobody will give a shit about your meme calibers like sneedmore while .308 exists. Not until we'll have actual lasguns or something.

>>63840632
>meme calibers like sneedmore
2020 called they want their joke back grandpa

28 Nosler is getting there and it's way overbore

>>63840978
Milsurp

>>63841070
>Milsurp
>still existing
2014 called they want their state of happiness back grandpa

>>63840194
Retard detected

>>63841003
But it needs to get that fast from a twenty inch barrel

>>63834616
Holy fucking Reddit.
If that were true, no one would make .308 or any of the old calibers because they wouldn't be profitable.
The shit you're bitching about is consumerism, NOT capitalism. Capitalism can exist without consumerism, and it also can exist without greed.

6.5 creed more ackley improved when?

>>63833127 (OP)
6.5-06 ha existed for a few decades and nobody uses it. 6.5Creed is so popular because it's a short-action relatively low-recoil round that bucks wind exceptionally well and is perfectly adequate for medium-large North American game at the practical distances the vast majority of hunters ever bother taking shots. It also has the ability to do long range target things for people who are into that/have the time&money for it. There's absolutely no reason to beef up 6.5Creed to
>3300fps from a 20 inch barrel
because that would just increase recoil& muzzle blast to a point that discourages most people from wanting to spend a lot of range time with it. Plus if you want a super fast long bullet with a great BC at the cost of muzzle blast and recoil, just use 300Win Mag or 7Rem Mag with normal length barrels. You can get some pretty damn lightweight hunting rifles in both of those calibers

>>63842549
Why can't somebody make a ar10 with the recoil dampening system of the ultimate light machine gun, then nobody would worry about recoil anymore.

>>63842818
*Ultimax LMG

>>63841107
Milspec I guess

>>63836606
>That's literally 6.5 PRC
6.5 PRC is short action and not quite that fast. It's more like a 6.5mm-7 PRC wildcat.

>>63841605
That's what I mean. 28 Nosler is overbore and is quite a way off so what you want will basically mean you pick up a new barrel each time you buy a box of ammo

>>63842818
>>63842826
Constant recoil is not no recoil.

>>63842850
https://youtu.be/lM6Y3rhLKPE?feature=shared

Link related, that's about as zero recoil as one person can get.

>>63842834
Barrels only cost $100 to 200 nowadays

>>63842850
You don't know how the constant recoil system works do you?

>>63833127 (OP)
Would 9mm para +P+ down-necked to 6.5mm give me flat shooting pistol cartridge with a range of 300 meters?

>>63842862
show me where I can get a .28 nosler barrel for 200 fucking dollars

>>63843123
Probably flat for like 50 yards only.

Explain to me what a sneedmore does that I cant achieve better with precision made 124gr solid copper .308s.

>>63843413
>124gr solid copper .308
just fuck my BC up senpai

>>63839304
Are you the guy who suggested in the other thread last week that all soldiers ought to be armed with hybrid case 6.5CM rifles and also carry a p90 in 10mm for short range stuff?

>>63842850
NTA. It’s as close as you can get to slapping Isaac Newton in the face. It’s pretty damn good, lol. I was gonna say it only really works in full auto, but no, it spreads out the recoil of a semi auto shot over a longer period as well. It just SHINES in full auto

>>63835996
God that would have been so good.
Had to be something like 4k+
It was just straight fast burn pistol powder, as much as they could fit in the case, then the bullet compressing it.
It was like a proof load's proof load.

LMAO picrelated

>>63843166
It's because nosler guys are snobs

>>63843413
Nothing within 300 yards, after that it pulls away and it does it more consistently with less recoilerino

>>63843413
>explain to me what XYZ mainstream factory cartridge does that my min/maxed weird handload can't
Be popular enough to get mass produced to a degree that any rando can buy it off the shelf in decent quality at a good price (relative to similar performance rounds) anywhere and have massive support with a wide variety of guns and lots of different available loads. That's what. Which necessitates it not be a total barrel burner, particularly unpleasant to use for a casual shooter, and all the other "soft" but important aspects of a cartridge beyond raw performance.

If you reload you can and SHOULD do whatever the fuck you want, that's part of the joy and payoff of reloading! But we're as irrelevant to mainstream as mainstream is to us, though honestly even the latter isn't entirely true. As much as I love it as I get older I also like having the option sometimes to not bother, or to focus my efforts specifically on really interesting stuff and not where it doesn't make much difference. I'm glad there is now a little more stuff that is a little closer to what a reloader might do, but available in factory off the shelf.

>>63845237
Got a nice 6.5 creed recipe brother? Or maybe a mild PRC? I find myself looking for something in between

>>63838948
>>63836606
I'm going to fight you on the 6.5 prc. It's a good chambering and it is fairly popular even though I won't own one because I'd prefer a 7prc or 300prc in a new rifle due to my hunting style.

Example rifle in the context of western hunting:
>22" barrel
>147gr eldm
>2900 fps
>carbon stock + barrel
>would recoil like an equivalent weight 270
You get a lightweight rifle ~3" shorter than a 270win with ~10% better range performance than even the best handloads in 24" 270win that has to use a long action. It'd be a good suppressor host OR it would be a great smaller truck gun that can double for jump shooting big game (walking ridges around lush basins to get animals to move). The gun would still be plenty to a conservative 600 yard range on these animals.
I'd still error toward a 24" long action mag chambering for the edge toward range and force the heavier build gun into the role of jump shooting when necessary but the 6.5 would be good or a great superb gun choice. You don't leave home without a backup hunting rifle do you anon?

>>63842862
Prefit barrels for custom actions and now weatherby 307s and Tikka are normally around 650$ low end

>>63845741
OP here, to clarify.

I'd like a 150 grain 6.5 creedmoor ammo that reaches 3300fps from a 20 inch barrel. I don't care if the action has to be made longer, I know it will. I want to be able to shoot it. But I also want the gun that can shoot it to have the same recoil reduction system as the ultimax LMG, that way a person would never feel the recoil. Also would like it to have a 1:7 twist.

>>63846587
*200 grain

>>63846587
>ignores everything anyone said
>just keeps randomly changing his schizo theorycraft and tacking on yet more random shit
yeah

>>63847187
You're a fucking retard, it can be done. I got a degree in physics, I hate seeing people's dream like imagination shot down.

Simply making the casing for the 6.5 creedmoor 0.5 inches wide and elongate the casing by an inch or 2 to 3 inches, then put in a 200 grain bullet.

Your idiotic excuse is "what about the pressure" shut up dumbass, compensate for the increase in pressure by making the case longer to allow for more room.

It can be done and it's a simple experimental request. A 200 grain 6.5 creedmoor bullet traveling 3300fps from a 20 inch barrel.

What would make a request impossible would be if he said something like " Make it go 25,000 fps from a 2 inch barrel".

>>63846587
If the action is made longer it starts to cancel out barrel length

>>63847988
*barrel length savings

>>63847988
I've never met someone as stupid as you, no matter how long the action is, 20 inches is 20 inches.

For example, a 4 inch long 9mm barrel has 1.17 inches dedicated to the chamber of 9mm, yet you never hear someone disregard said barrel chamber and say "this glock 19 has a 2.83 inch long barrel" nor do you ever hear someone say the same thing for a .45acp barrel or a .308 barrel.

Why is it that you are suddenly considering this now you fucking idiot.

If this was the case you would hear about it everywhere you dumbass. You never hear someone say " this .308 rifle has a 17.2 inch barrel" or "I want a 17.2 inch barrel replacement for my .308 rifle" you never hear somebody say this you fucking dumbass goddammit you idiocy is astounding, you never consider the chamber length seperate from the barrel length ahh you're so fucking stupid I have to explain this.

A 20 inch 6.5 creedmoor barrel is always 20 inches no matter the chamber length.

"But his idea is stupid and if you make the casing longer then its no longer a 20 inch barrel and you gotta make the action even longer wah wah wah" you see how stupid you sound.

Fucking idiot

>>63846587
>200gr @ 3300fps (4840ft*lbs)
>no recoil

It doesn’t matter what tricks one employs to ameliorate the recoil of such a cartridge, you are feeling it no matter what. The cartridge you describe is basically a 338 Lapua Magnum necked down to 6.5, and fired from like a 30” barrel

>>63847988
NTA, Not really true. The longer action eats up the space taken up by the stock, which is then shortened to accommodate the longer action. The longer action would eat up barrel length only when the action is so long that you have to start moving the breech forwards. Like, idk, a constant recoil 50BMG

>>63848041
>you never consider the chamber length seperate from the barrel length

You do with a revolver, where the chamber is not cut into the barrel. Which leads to frustration when comparing the performance of say a 4" 686 which actually has 4" of rifling to a 4" Glock that has 2.83"

>>63848059
I suggest using the ultimax LMG recoil dampening system, that way the gun bolt never physically makes contact with the buttocks of the firearm.

Have you ever seen the ultimax lmg firing? It has zero, yes i mean zero felt recoil because the bolt never makes physical contact with the end of the gun, the springs pushes the bolt in the opposite direction during extraction.

It feels like nothing or so say the people who have fired it

>>63847585
>>63848041
>>63848224
>I GOTZ A DEGREE IN FISIKS GUIZ!!!
>conservation of momentum doesn't exist if "the bolt never makes physical contact with the end of the gun"
>i want "6.5 creedmoor", just changed in ways to have nothing whatsoever to do with 6.5 creedmoor
Huh this is actually kinda exciting, I think for the first time in ages we have a brand new schizo cartridge retard here on /k/. Last time was like 2 years ago when that fag kept insisting 22lr was obsolete because it needed to be able to be reloaded to "save money".

>>63848289
You're just stupid. You have zero legitimate counter arguments. If the world was full of people like you everyone would use .308 and the creation of new calibers would never occur because someone like you would scream "What's the point of making a new bullet when .308 is all you need!"

You see how stupid that sounds?

>>63848224
I know what a ultimax is. In the case of 5.56, the recoil is so negligible that you can say it doesn’t exist, though it still does.. scale things up and the recoil you feel isn’t gonna be trivial. A 22lr technically has recoil. If the system is losing mass in on direction, the whole thing is gonna move in the opposite direction, where it will have mass and velocity and thus energy.

Another thing you’re ignoring is that the bolt mass necessary to achieve the effect of constant recoil must be half of the total recoil energy, and so in an 8lb gun, that’s a bolt weight of 16 pounds, kek. Increasing the gun’s weight to be heavier than the bolt, you’d need a 12lb gun with an 11lb bolt.

It’s not happening. It’s still better for the carrier to never bottom out, but you are not achieving constant recoil with the 6.5 you describe, not unless the gun itself is extremely heavy.

>>63848303
Anon, there are literally hundreds and hundreds of cartridges. Even putting aside black powder and focusing just on smokeless, people have been experimenting with everything under the sun for over 100 years now. People who are way, way more serious about this then you. Whatever thought has come into your head it has almost certainly been done. Being convinced you are a super special snowflake without having done any actual effort IRL is one of the core signs of nut. Nothing is stopping you from learning to reload and getting to it and then telling us about how it went for you. You could learn to gunsmith for that matter. All that is super based.

But your particular kind is painfully familiar on the internet: wishcrafting based on who knows what popped into your beautiful special heads, because it's definitely not based on having learned the art and done some load development, using a calculator, or even basic physics.

>>63848364
I recognize the lion by his claw. OP was suggesting in another thread about a week ago that the standard loadout ought to be ~150 rounds of gigapressure 6.5CM, and a whole-ass p90 with 150 rounds of 10mm as a SIDEARM. Talking to him is like taking to a wall. He is stubbornness manifest.

>>63848409
kek, I missed that thread, sounds hilarious though. The type is certainly recognizable, like I said for awhile we had some dude who had an absolute vendetta against 22lr. In his case he got btfo so bad that he had to give up on his original retardation and then smoothly pivot into insisting that 5.7 would replace 22lr(!?) which lasted maybe 6 months or something. He vanished at last last year I think.

I guess if some people can convince themselves the earth is flat and piles of other shit what you describe (seriously holy shit, "p90, 10mm, 150 rounds, sidearm" ahahahaha) isn't that wild by internet standards.

>>63833127 (OP)
if ur still here op and other anons have not made you rage quit [until next week] serious: go read this
>https://en.wikipedia.org/wiki/Table_of_handgun_and_rifle_cartridges
like just look through it. realize it does not even cover a billion wildcats but still has a lot. see what has been done. look at what is close to what you say you want and it entails. good gut check

>>63845741
Fair points anon, I guess I get some of the logic vs 6.5cm. It'll buy you about 300fps more out the same barrel, or alternatively the same velocity out of a significantly shorter barrel. If someone is using a traditional pattern rifle (and most are) and likes to shoot suppressed (getting more common) then being able to cut back from a 24" barrel while staying within their hunting energy target could be worth something. It costs mag capacity (like from 10 rounds to 7) but that only matters in the context of a battle rifle imo which is not what it's for. It costs about double 6.5cm, so around the same as decent 300wm starts at, but it's not 5x or something crazy, and 300wm is a totally different class of recoil.

But I feel like for me personally it ends up more in the middle whereas last few years I've been moving to edges instead. 6.5cm already does fine for any typical hunting or paper while still being an economy cartridge. At least in my area of NA like 99.9% of hunting is <300yd, you just don't have ethical safe shots any further regardless of gun, and you should be able to easily get to within 100-200yd of an animal. I guess I sorta feel like if I want more, I want much more, and if anything I often would be interested in less. And for 6.5prc the barrel life is getting uncomfortably short for me too, 7prc is even worse. I respect the f-class guys but not something I do myself.

Anyway, I've sort of ended up with 6.5cm as the cheap generic, 300wm for more, 300prc something I've liked my experiments with and may switch to next barrel, and 22cm a really interesting smaller one. But you've helped me see how 6.5prc could fit in with a different style and preferences. Good post anon.

>>63848358
>Another thing you’re ignoring is that the bolt mass necessary to achieve the effect of constant recoil must be half of the total recoil energy, and so in an 8lb gun, that’s a bolt weight of 16 pounds, kek. Increasing the gun’s weight to be heavier than the bolt, you’d need a 12lb gun with an 11lb bolt.

I think your wrong on that

>>63848828
>i think the basic physics of guns is wrong
OK, go prove it buddy. You'll have a megahit on your hands. Be sure to patent early and often so no one can take your ORIGINAL IDEA DO NOT STEAL! from you. Post threads about your experiments.

>>63848828
It’s included in the patent for the ultimax

>>63848409
I should’ve said “I recognize the koala by his retard helmet” or something like that because “lion by his claw” implies reverence

>>63848364
I don't know what to say besides the fact that you are ignorant and stupid, it's a good idea. A 180 grain creedmoor travelling 3300fps from a 20 inch barrel has not been done before, otherwise i never would bring it up.

I'm been on 4chan since 2007, plenty of doubters like you visit this board.

If the guy who made .375 cheytac and .416 cheytac was talking to you through this board, you'd call him a fucking idiot and tell him to just give up on his crazy idea of making .375 and .416 cheytac. You'd tell him to just use .308 and to give up.

I'm calling it, you're fucking stupid man.
Nobody should listen to some fucking idiot like you. Plenty of good idea would never leave production if you had your say.

Dipshit.

>>63848855
>I should’ve said “I recognize the koala by his retard helmet” or something like that because “lion by his claw” implies reverence
Yeah did wonder a little at that phrasing. Because damn you weren't kidding lol look at this shit >>63848868. And now he's totally been on here since 2007 too. Whew.

>>63845256
140gr bullet on 41.0 grains of H4350 is standard 6.5 creedmoor handloading

>>63848868
NTA. Lots of things are good ideas, but all of firearms design is an exercise in compromise. There is a place in the world for the 50BMG and its 14,000ft*lbs, but this place is not in a shoulder-fired service rifle. Same with 375 and 408 cheytac. Those are cartridge optimized for mile+ shooting, something no grunt is ever going to even attempt. On the opposite end of the spectrum, there is (probably) a place in the world for 22lr, but, again, not in the service rifle.

A 200gr 3300fps 6.5 is around ~2.7x as overbore as a 5.56 btw, and so barrel life is likely to be in the triple digits, tops. Not to mention the recoil. Not to mention the weight of the gun and cartridge, the reduced combat load. Why the hell would we arm everybody with a rifle in such a cartridge? To what end? What is it we are trying to achieve that something far smaller and more manageable can not?

Don’t let your gun autism guide you astray. Cool ≠ useful, much less optimal.

>>63849002
All I'm reading are excuses

>>63834076
Damn, I wonder why every 1st world military still employs sniper teams still, or even infantry for that matter. they must be retarded compared to you

>>63848868
By the way, this is what you’re talking about. I modeled a 338 lapua necked to .264 in an internal ballistics computer and raised the pressure until I hit 3300fps with a 200gr bullet from a 20” barrel. A 200gr .264 doesn’t exist btw, and with normal bullet material densities, would require an L:D of 7.3:1. This is all just absurd. Your cartridge would have greater sectional energy than a 50BMG. Thus the appropriate barrel length is even longer than that of 50BMG, and barrel life even shorter.

>>63834386
>nogunz
But that's half of /k/

>>63849054
You're a noble soul but none of this means anything to that whacko, as far as he's concerned anything that doesn't comport with his fairy magic fantasy is "excuses". He'd have to actually try to do something himself. But it's clear in this thread he immediately runs away whenever anyone suggests such a thing.

He's an "idea guy" lol. The real world is just "implementation details".

>>63849054
>A 200gr .264 doesn’t exist btw, and with normal bullet material densities, would require an L:D of 7.3:1
is that approaching the limit of gyro stabilization? at one point i knew what the max was but can't remember and can't figure out the right search terms. but you can't go infinitely long, thats why modern ap rounds had to switch to fin stabilization so they could keep increasing the sd.

>>63849142
I’ve heard of a practical limit of about 6.3 calibers, but playing around with Berger’s bullet stabilization calculator, I found it’s possible to stabilize even a 10:1 L:D with angular velocity less than that of supersonic 8.6 blackout (so, a manageable angular velocity). Maybe the practical limit I heard about assumes a certain maximum engraving angle. In any case, I am aware of some guy in Germany who makes VLD bullets longer than 7 calibers in length, so evidently 6.2 is not a hard limit.

Am I missing something or can we actually make and shoot ultraheavy .204’s with G7’s >0.5? That would make for some really gangster expanding subs

>>63849142
Alright for shits and giggles here is a 15 caliber long .224, 240 grains, G7=1.1, stabilized with a 1-in-2 twist. A 1:2 twist imparted on a .224 has the same engraving angle as a 1:3 8.6 blackout, so at equal velocities they’ll have equal angular velocity.

I wonder if 20 calibers long will stabilize

>>63849214
Update: a 320gr, 4.5” long .224 bullet is “marginally stable”

…

But if you blast it out of the barrel at 4200fps, then it’s “comfortably stable”.

>>63849214
I think that there's a good chance that whatever empirical stability estimation is being done by that calculator does not provide reliable results this far outside of standard geometries. That mf chopstick is gonna wobble.

>>63849142
>>63849171
>>63849214
I don't think you can actually trust those calculators for stuff that's too far beyond the norm. It's been a long time since I read any of this stuff and I should really catch back up, but back in the day at least you had good sources like:
>https://bisonballistics.com/articles/bullet-stability
and the tl;dr was the the real world of dynamic stability is really complicated and you often have to actually do real world testing because the modeling wasn't up to it. Sg is related and gets you in the right ballpark but it's not exact vs Sd. Reaching back for my hyper rusty physics, I vaguely remember one core factor is where the center of gravity is vs the in flight center of pressure. In a normal bullet cog is behind cop, but in a long enough rod the cop actually ends up behind the cog. Supersonic aerodynamics is complicated, but there's definitely a velocity/lv-ratio limit where you can't stabilize no matter how fast it spins. Maybe the army just flat out did it experimentally.

>>63849054
>Your cartridge would have greater sectional energy than a 50BMG. Thus the appropriate barrel length is even longer than that of 50BMG, and barrel life even shorter.

Don't trust that calculator shit

>>63849416
Ohh nooo I guess it requires a 50 inch barrel to even be stable, wow, how incredible, you are such a genius.

>>63849054
That calculator probably says that .375 cheytac is unstable, i wouldn't trust it.

>>63849416
>>63849433

>>63849416
I’m not trusting the calculator when I say sectional energy would be greater than 50BMG. 4800ft*lbs over a .264 bore is in fact a greater concentration of energy than 13000ft*lbs over a .510 bore.

>>63849433
The powley computer says nothing of stability.

>>63849433
do you, like, even own any guns? just curious

>>63833127 (OP)
What's your endgame?

>>63849538
My end game is to make a new super popular caliber door DMR usage. So far, from what I'm getting, a 180 grain 6.5 creedmoor traveling 3500 fps from a 20 inch barrel seems to be about right.

>>63849538
is that the p90 sidearm one or was that an earlier one?

>>63849556
>My end game is to make
>make
But you don't make anything, and aren't going to make anything. You don't even reload at all let alone develop.
>a 180 grain 6.5 creedmoor traveling 3500 fps from a 20 inch barrel seems to be about right.
This is just llm tier gobbledygook.

>>63849556
Everyone, without exception, shuts down your stupid idea every time you float it.

If you want a superlative DMR caliber you might actually be looking into smaller calibers, stabilizing very long bullets, ogive geometry, consistency, things like that. Shit, maybe even just developing aimbot-tier optics.

Why did you pick 6.5 (or 30 cal in your other thread, I guess), and why 3300-3500fps?

>>63849557
I was posting in the p90 sidearm thread, don’t remember that being the main image.

>>63849557
Here anon, it's still up in the archive enjoy:
thread: >>63795842
post: >>63804688
>What the military really should do is issue a better caliber sidearm. I am of the honest opinion that the default firearm should be switch to 6.5creedmoor with a 20 inch barrel ar10 and a p90 as the sidearm of choice with every soldier carrying 120 rounds in total of creedmoor on them and 150 rounds in total of the p90.
>You use the creedmoor for anything longer than 100 yards and the p90 for cqc.
mfw

>>63849571
>Everyone, without exception, shuts down your stupid idea every time you float it.
My gun friends say otherwise.

And if i explained the inner workings of my mind and idiot like you would never understand them. I'm sorry that you're too stupid to understand, seeing as how I'm a physicist and you aren't, I don't expect you to understand me.

>>63849556
I'm going to make a 185 grain 6.51 creedmoor traveling 3550 fps from a 19.5 inch barrel and eat your fucking lunch.

>>63849586
>>>63804784
>And they should make it so that the p90 is rechambered for 10mm.
>Since 10mm has zero drop off at 100 yards and less.
>120 rounds of the new .308 and 150 rounds of 10mm per person.
haha what the fuck
>"JUST rechamber the p90 in 10mm it's so ez bro!"
>10mm has zero drop at 100yd
yeah

>>63849586
That thread was incredible. His justification for the p90 in 10mm was because 10mm has zero drop at 100yds, and I had to explain to him that you could just zero any cartridge for 100yds. But no. He need his 6 pound “sidearm” with 5 pounds of ammo specifically for 0-100yds because for some reason his 6.5BMG wunderwaffen can’t handle 0-100.

We should have a stickied m7 hate thread desu btw because there is always one in the catalog, and when there isn’t, I get sad. I love hating the m7.

>>63849593
This post caps your IQ at 90.

>>63849593
>My gun friends say otherwise.
I'm sorry to be the one tell you this anon but I think your gun "friends" are having an elaborate in-joke about the downie who looks up to them and giving you an ATTA BOY YOU BUBBA THAT CARTRIDGE then laughing madly once you're out of earshot.

>>63849605
I’m skimming over that thread now and I just noticed that somewhere around the middle he went maximum retard and suggested 350 rounds of 10mm. Yeah. As in, your sidearm should be 2 feet long, 6 pounds in weight, and you should carry 7 magazines for it totaling like 15 pounds, because your 20” barreled 6.5BMG is suboptimal for 0-100yds.

>>63849695
Its a good idea

A 180 grain 6.5 creedmoor traveling 3300 fps out of a 20 inch barrel, which you hold 120 rounds for (20 already in the gun) and a smg for suppressive fire is a great idea.

>>63849879
>bumping your own thread with self-affirmations.

>>63833127 (OP)
No because creedmore rhymes with sneed for sneedmore.

>>63848995
I'm getting a reloader soon, looking forward to rolling my own

>>63850144
You can call it 6.5 Sneedevenmore

>>63849879
you can't even keep your fantasy numbers straight lmao
>great idea
something you yourself will never do is not a great idea

>>63848692
>>63848692
>if I want more, I want much more, and if anything I often would be interested in less
That resonates with me too. I'm in the exact same situation with the big game guns. I have a lot of equipment for 300wm and a good amount for 7rm but I think I'm going use up what I have and switch over to the PRCs when barrel change time comes. The shorter COAL, not having to specify a different jump or twist often on newly ordered barrels, and maybe longer brass life can make life easier in the future especially on some older guns that do not have the magazine space.
If I was made out of money and time I'd have the 6.5 prc described as a tertiary on hunts for the jump hunting (or at least I call it that). I won't blog post too much about my experience but it's funny when your specialized heavy rifles that cost as much as a used car go a full year never shooting game past 300 yards. Two of the more impressive shots were 90 yards on a sprinter and 220 yards on an aware deer both free hand. Carbine practice with an overweight gun paid off.
My state, OK, is short range ambush hunting and that just isn't as thrilling. If you don't already, consider giving a western hunt with a friend a try. It's physically demanding and expensive but if you have the long range gear to loan it's a lot of fun and an excellent proving test of your things.

>>63852341
>My state, OK, is short range ambush hunting and that just isn't as thrilling. If you don't already, consider giving a western hunt with a friend a try. It's physically demanding and expensive but if you have the long range gear to loan it's a lot of fun and an excellent proving test of your things.
Thanks anon, that's a good thought. I have considered some sort of trip like that, but I just started my own business and am going to give that a go. Which may give me a lot more flexibility long term, but means I won't have big periods of free time for at least a few years I suspect.

I am fortunate to at least benefit from the logging industry, these days a lot of them do longer narrower strips, which I guess is good for biodiversity or recovery or something, but it means if you know where to go you can find these great mile long lanes out in the forest middle of nowhere where normally you'd never get anything remotely like that around here. Obviously they start to really grow back in after 2-4 years but there are fresh ones to find.

For what reasons would someone not want a bullet to travel faster than normal?

>>63854360
Mo’ velocity is always better if it comes at no cost. But it always have immense cost. For starters, it could be the case that you are better off increasing the length/SD/form factor of the bullet and giving up some velcoity. If the objective is superior external ballistics, you might be well-advised to do just that. And if you want to increase velocity but keep bullet weight the same, well you’re gonna need a much bigger and heavier case with greater volume, you’ll have to deal with increased recoil, more muzzle blast, shorter barrel life, etc.

We’ve been over this. All of firearms/cartridge design is a compromise and you can not take one value and pursue it to infinity because it will come at great cost everywhere else.

Really the main problem with your idea is not so much velocity, it’s that you want to propel a 200gr 6.5 at a very high velocity. It’s this combination of extreme SD and very high velocity, and also the sheer energy of the whole thing - almost 5000ft*lbs, that is the problem. But nobody’s complaining about the velocity of 3300fps 5.56.

Your 200gr 6.5 at 3300fps might be an excellent ELR cartridge, probably better than anything else, but such a cartridge makes for a very poor service rifle chambering. Remember that the primary firearm of a soldier in every army in the world right now is really just a more evolved version of the submachinegun. It is intended to incorporate the desireable qualities of SMGs. Namely being small, light, light recoiling, and allowing one to carry lots of rounds.

>>63854360
>>For what reasons would someone not want a bullet to travel faster than normal?
Impact velocity comes to mind. Much like air resistance increases incredibly the faster you go, Impact resistance does as well. Even in pistol bullets this has been encountered where bullets ne to be redesigned to perform ideally under the increased impact resistance.
Recoil increases. Pressure and the issues that causes equipment comes to mind. Weight, and on and on.
At the velocities the op was discussing, diameter and weights... these already exist. Whatever you can think of, there is already current past and upcoming wildcats in development.

>>63833127 (OP)
They already do and no

>>63855526
They already make it, it is called the 6.5-300wby and no because its a barrel burner

>>63843682
post link i need to see this

>>63854360
Recoil, muzzle blast, barrel life, cartridge length weight and bulk, excessive chamber pressure accelerating wear.

Normal is normal because it is the compromise of many factors to arrive at a near-optimal solution given physical, ergonomic, and technological constraints.

>>63836420
It's called the 6.5-06 A-Square.
>>63836606
6.5 PRC is quite popular.

>>63840632
Too bad it's overtaken .308 in popularity huh

>>63855405
> At the velocities the op was discussing, diameter and weights... these already exist

I agree with the rest of your post, but this is not true. It’s never been done before (for good reason). See my post: >>63849054

>>63855531
the performance OP is suggesting would require about 50% more propellant behind the 6.5 bullet than even 6.5-300wby

>>63833531
Swiss mountain jews already figured it out years in advance

None of those bullets suggested can launch a 180 grain 6.5 creedmoor bullet at 3300fps from a 20 inch barrel.

>>63833127 (OP)
They should call it CreedMORE™

>>63854360
>For what reasons would someone not want a bullet to travel faster than normal?
Thread has exhaustively listed the reasons:
- recoil
- barrel life
- cost
- rifle requirements

This is all obvious stuff. Do you even own guns at all?

>>63857078
There is no such thing as a 180 grain 6.5 creedmoor bullet

>>63833127 (OP)
They already do. It's called 6.5x55mm Swedish and it's been around for ~130 years.

>>63857813
>recoil
Compensator
>barrel life
Buy a new barrel dumbass
>cost
What's a poor person doing shooting guns
>rifle requirements
Trivial

You must be poor

>>63857908
That requires a 28 inch barrel, mine does it in 20 inches

>>63857880
BTSniper 180 grain 6.5mm caliber VLD bullet for the 6.5 Creedmoor

>>63857946
That's a homemade one-off batch from one guy on the castboolits forum for a 6.5 WSM chamber. It is too long to load in a 6.5CM. He got 3100fps out of a 28" barrel. I don't think you know what is and is not 6.5 creedmoor.

>>63857946
I remember encountering this picture years ago. Shits crazy long. Kinda dumb though how a guy sets out to create a superheavy VLD bullet and employs a tangent ogive.

Your 200gr will be longer than that. No problem though, I’m sure it can be stabilized. But like I pointed out earlier, the minimum case requirement is a 100kpsi 338 lapua case. Have you the faintest clue how much larger and heavier than 5.56 that is? You need 4x the capacity of 5.56 at almost double the pressure. I’m sorry bro it’s not happening. And vis a vis recoil, so far you’ve just stuck your fingers in your ears and sang “la la la” when it’s been pointed out that constant recoil (ultimax) is not some magic mechanism that turns physics off. You also have never explained why such a capability is even desired in the first place. So desired in fact, that it ought to be issued to every rifleman. Who’s shooting at a mile? Who’s even shooting at half a mile? The entire world moved towards intermediates over half a century ago, because like 95% of fighting takes place within 300 yards. You want a replacement for 5.56? So do I. Its replacement must be a better 0-300 solution. Optimized for 0-300, not “50BMG is pretty good at point blank range”.

So far your idea is to give everyone a bigass superheavy rifle with punishing recoil chambered in picrel loaded to 1.3x proof pressures, that is like 3-4x as heavy as 5.56, and a separate ~15lbs worth of “sidearm” and its ammunition.

Here’s the internal ballistics info for your 6.5 CreedmoorBMG in all its glory. I used 308 case info since I know that by heart. I even helped you out and loaded it to 3.34” COAL, same as 30-06 and its peers. Note the pressure. the computer isn’t even designed to work with such pressures so it’s possible that’s an overestimation of energy. And it most definitely is. Only conceivable way of pulling this off with a 6.5 CM case is to use little bits of high explosive in your powder charge, and firing it through a chamber built like a vault. Pray and hope the gun doesnt blow up in your face and take your head off.

Here, OP, I’ve found the most feasible way to accomplish this (with a 180gr bullet)

Picrel, 30-06 case at 97,000psi

So here’s what you have to do. You have to make a solid tungsten 180gr <6.5mm bullet. As short as possible. Then encase this in a cylinder of some malleable material for a total diameter of .350. You will have to use a squeezebore barrel to squeeze this all down to .264 at the end of barrel travel. It helps if this material is dense, but it’s probabaly not. Idk let’s say you use polymer, 1g/cc, basically nothing. All this has to survive almost 100kpsi. The case and the action have to survive this as well. So you have to invent a case and action that can do this, but this is a much more approachable proposition than anything else. It’s only 25% more than 80kpsi.

So there you go. You’re welcome. Go off and revolutionize guns for us now. Nobody will adopt it though because it’s a dumb idea. I’d rather carry an SMG. Atleast my corpse will look cool next to an SMG because I died because I’m inadequately armed.

>>63857925
>Compensator
noguns retard
>cost to use case is irrelevant
noguns spreadsheets retard
>poor
lol imagine a noguns claiming that
>trivial
yeah you've made clear you have no idea what you're talking about lmao
>You must be poor
post your amazing rich rifle you totally have and definitely use

>guys what if someone did [stupid thing] would it be popular
>no retard
>y-you're just POOR if you don't want it!

If you're so not poor, build your own wildcat rifle round and rifle with a 200 round barrel life. Until then, shove an eargesplitten up your ass backward, OP.

>>63858297
no no you don't understand he's an IDEAS GUY, he already did the hard part of coming up with his amazing concept, the rest is just peasant implementation details no doubt any pleb can do and he's far too busy and important for

>>63858297
I'm sorry your so poor that you think a barrel life lasting 200 rounds is even probable. You gotta be stupid to think this nu round OP made is impossible

>>63858572
>Its impossible
>OP is a retard
>Their bullet idea is crazy and stupid

Take a look at .416 Barrett. .375 cheytac, .408 cheytac, those sound like stupid ammo designs for idiots with chamber pressures exceeding 90k psi.

And yet they still sell and they work

>>63858572
Why use .416 Barrett, why use .375 cheytac or .408 cheytac when you got .50 Barrett

>>63840978
outside of the US it's litterally a meme round, nobody is buying it, it doesn't kill anything for hunters, long range shooters all goes for more powerfull caliber or get into some snowflake shit and everyone else get a .308 rifle

>>63859676
with a barrel life of 300 rounds for match purposes, 500 if you want to consider it "usable" for plinking target at extreme long range with a mediocre grouping

>>63859757
Get better at shooting dumbass, the damn barrel still works just fine. It's not like the barrel wear magically makes the barrel unusable, it just makes it slightly less accurate, i never buy new barrel and i'm still hitting 1 moa and less, just get better at shooting.

>>63859676
Except those are all perfectly sensible cartridges for mile+ shooting and all running at <65kpsi. Where did you get 90k from?

Just because an idea is new, and has never been done before, does not make it a good one. The anons here are not anti-innovation and anti-good ideas, we are all anti “being different for the sake of being different and calling it innovation”. Yours is not just different though, it’s a terrible idea. I posted above the most feasible path to 180gr @3300fps, trying to help you out and show you how ridiculous it is, and you did not even acknowledge it. Your idea is dogshit and you know it. It has no legs to stand on. You’re just extremely emotionally invested in this 6.5BMG thing and probably even thought you were clever for dreaming it up. I cant help but wonder if you’re trolling. The timeline of this whole thing, esp with the p90, just keeps getting more and more ridiculous.

>>63859733
>Outside the US…

Nobody outside the US owns guns, anon. We’re the only cool guys on this planet. And I’m not even defending 6.5 - I hate 6.5 sneed.

>>63859833
>practicing shooting where every shot wears the already fucked barrel even more will make fresh lands magically sprout from the rifling
Noguns really live in an alternate reality

>>63859843
Naw bro, the point is that if OP came up with the idea of .416 barret, .375 cheytac, and .408 cheytac you'd call them stupid and you'd call the made up calibers impossible because your a piece of shit dick.

There's always going to be people like you, you remind of robert oppenheimer, incredibly critical person, so critical in fact, due to him being overtly critical of other peoples ideas he lost a chance at a nobel prize.

he was criticizing a 3 man group research team so much that everyone lost faith in them during a seminar, next thing you know they came out with the BCS theory and all 3 got a nobel prize

>>63859676
>IT'S TOTALLY 90K GUYS DOESN'T THAT SOUND DUMB!? BUT IT'S REALL!
>416 Barrett. .375 cheytac, .408 cheytac
>pressure: ~64k psi
haha holy shit
>create strawman
>try to knock it down
>except you're such a noguns you can't even get your strawman right and trip over your noodle legs onto the floor
whew

>>63833127 (OP)
what is 7mm-08 retard

>>63859885
Nice try OP but robert oppenheimer is not real he is a propaganda persona created by the Rothschildren. Nobody has ever met him IRL. Oh that's just like you!

>>63859885
> because your a piece of shit dick

I don’t even know you and I’m a better friend to you than your IRL friends who entertain your very dumb ideas. Atleast I told you the truth.

Nobody would call the cheytac guys retarded for suggesting 375 or 408 cheytac, unless they intended for it to be a service rifle cartridge. Then we’d laugh them out of here.

>>63859898
Not even close bro. What he’s suggesting is a 5,000ft*lb 6.5 cartridge. It’s more like a gigapressure 338 lapua necked to 6.5

>>63860170
You're just a dick that won't contribute to the conversation. I never read any contributing comments of yours that have contributed in any way to the topic at hand.

A 180 grain 6.5 creedmoor that travels 3300fps from a 20 inch barrel is doable. Simply change the diameter of the casing to .5 inches and change the casing length to 3 inches or 4 inches long.

You see! It is that simple.

>But what about the pressure
Elongate the casing to allow more room for pressure
>But what about the speed, its too fast
3300fps isn't too fast
>But what about barrel wear
You think the us army gives a fuck about barrel wear when they have billions in taxpayer money to spend?
>But I don't like fantasy new idea ammunitions
Boo hoo cry me a river

> But its to heavy!
Not really, just carry between 80 to 120 rounds

>But no sniper would use it or enlisted would use it
You stupid ass giga nigger motherfucker, the xm7 got approved and it shoots a shittier bullet than OP's bullet and the entire gun is heavy as fuck

You just got something against the OP

Barrel wear is insignificant, by the time you need a new barrel you've already shot several thousand rounds, and if each round is priced at $1 then you've already wasted anywhere between 2000 to 5000 dollars in ammo.

A replacement barrel is insignificant in costs compared to the cost in ammo you already wasted, so why complain about barrel wear when that is the least of one's concern.

If you can waste a few thousand dollars on ammo then why worry about a $300 barrel replacement?

>>63833127 (OP)
Just do it bro. Even if it fails, it'd still be a good thing to slap on your resume or brag to your grandkids. If you try and fail, you will be able to say that at least you tried. If you let every other anon here tell you no, there will be a bitterness you can't unfeel.

You asked for permission, and were shocked when someone had the chance to tell you 'no.' Don't give them that chance.

>>63860252
Hah. ok so you’re OP pretending you’re a supporter of his. Hey OP. You feel humiliated?

I’ve made more contributions to your dumbass thread than any other anon. Every internal ballistics screenshot and external ballistics chart is me.

>just increase case diamater and make it longer, it’s that simple!

Yes I understand that the transformations that must be made to the case are, indeed, simple. It is only 2 operations. If you bothered reading any replies to this thread you’d see that that was my conclusions, that a cartridge case no smaller than 338 lapua would suffice, and that’s at insane pressures. At normal pressures, you are looking at something more similar to 408 cheytac in size and weight.

>3300 is too fast
I never said it’s too fast.

>barrel wear
Yes the army does give a shit if the barrels gonna be shot out halfway through a combat load because it was halfway shot out when the rifle was zeroed. And every recreational shooter is also gonna care.

>it’s too heavy!
Yes it is too heavy. 80-120 rounds is not some magical number of cartridges that “probably don’t weigh much”. If the whole thing weighs 4x as much as 5.56, which it is likely to, 80-120 rounds then weighs 8.5-13 pounds, without any magazines. Twice the weight of the present 210rd load with half the ammunition.

>but I don’t like fancy new ammo
No, I do, but your idea is fucking retarded.

>but the army adopted the xm7! They’ll love 6.5 BMG

The way things look now, the army has made a mistake adopting a fuckhuge cartridge in a fuckhuge rifle. Nevertheless, their adoption of 6.8x51 is not some signal that the trajectory of small arms and their ammunition is suddenly gonna take off in the opposite direction that it’s been going in all this time.

>xm7 shoots a shittier bullet so mine is better
I can draw up a superior bullet to yours and claim the whole world should adopt it because it’s more gooder.

I’m the army. Sell me on your new gun.

>>63860252
>>63860324
(Cont)

In short, you are Dunning-Krueger Manifest. You don’t know as much about small arms and their ammunition as you think. Not even close. You don’t know how mass works, or volume, or recoil, or constant recoil, or pressure, or barrel life, and apparently can not comprehend the fact that there is zero military demand for a 2000yd+ cartridge for the typical soldier. And this isn’t even your only dumbshit suggestion. I remember talking to you about your stupid idea of giving everyone a p90 as a sidearm with its own million pounds of ammo. You are not capable of reason, only able to respond with “nah bro it’ll work, it’s a sidearm, trust, have faith, don’t be a dick.” And apparently you’re a physicist and I and everyone else in here are knuckdragging apes who can not fathom the machinations of your brilliant mind.

>>63860314
OP is an autistic child who just last week discovered his new special interest is firearms, and now he’s larping like he’s Browning.
..unless you are also OP, he is pretending to be other people in this thread.

>>63860324
You're fucking stupid, that's what you are. You either grew up without a dad because he was too much of a pussy (and got divorced) to stay married or your mom dropped you as a baby and your head hit the floor.

My bullet idea is a great idea, I know that now since I asked other people.

>>63860358
Hey! A p90 as a sidearm is a great idea. You can use it up to 200 yards, beats carrying a handgun.

>>63860324
>>63860358
Why the FUCK are you still replying? OP is either literally one of the most retarded autistic fags on /k/ in at least 7 months, or this is all some elaborate "I was only pretending to be retarded" piece, or it's an experiment in time wasting slide AI. He's literally acting like a low tier chat bot. OP never replies even once to anyone who actually challenges him to DO anything at all, ever.

If someone honestly wants help getting into actually doing stuff that's worth some effort. And it's some amusement to mock the retard. But OP is way below that, and really does look to just be baiting. He's not going to do anything and has never refuted the suggestion he doesn't own guns at all. Like, look at this shit:
>63860389
0/10, not worth a (you), didn't even bait the hook!

>>63860401
Sup OP

>>63860389
> My bullet idea is a great idea, I know that now since I asked other people

Hah. Give it up man. You’re gonna go crazy pretending to be like 3 different people in a thread just to own one anon.

>>63860324
>I’m the army.
I had no idea you were army. No wonder it feels like I've been talking with a fucking retard this whole time, why didn't you say that sooner? I would have ignored the retarded ramblings of a certified army retard commenting on bullet ideas.

I feel bad for you, since you're retarded.

>>63860427
Ugh, idfk bro. I’ve been up for like 30 hours or some shit and I don’t have anything better to do, I’m sitting around huffing my vape and drinking coffee and engaging in an online shouting match with some schizo anon pretending to be multiple people.

Thanks for the post. I’m leaving this thread now. But you watch, this guy’s gonna make another thread about 6.5BMG the minute this gets archived.

>>63860444
>vape
Retard detected

>>63860478
why did you never post your rich person guns op?

>>63833127 (OP)
>If someone came out with a elongated overall length of 6.5 creedmoor that traveled at 3300fps from a 20 inch barrel, do you think people would buy it and use it over regular creedmoor?
No. Now never make this gay thread again.

>>63833539
>6.5 Sweden is slow as fuck.

It is because commercial ammo is downgraded for use in 140 year old guns. If you hand load, you can get 3300 fps with a 100 grain bullet.

>>63865488
But I need 3300fps with a 180 grain bullet from a 20 inch barrel

>>63865624
y tho

>>63865633
It ain't called maximum for nothing.
A fast and heavy bullet punches through body armor at 100 yards

>>63865633
I figured I would want something that penetrates body armor at 100 yards away, since 70% of combat occurs within 100 yards.

>>63865763
>>63865770
6.5mm ultraniggermagnum seems a little overkill for such a thing, especially considering the tradeoffs it incurs

>>63866146
My thought process was this.
>70% of firefights occur at less than 100 yards
>I need to be able to penetrate ar600 at 100 yards
>But i also need a super accurate bullet that is good for 800 yard shots

It was in another thread but I came up with the idea of using a faster version of 6.5 creedmoor, something that travels 3300fps from a 20 inch barrel was perfect so long as it weighs 180 grains.
The soldier would only carry a total of 80 to 120 rounds of this 6.5 super on them while carrying a fn p90 with 250 rounds in total of 5.7 to use for anything up to 200 yard shots.

Every soldier would carry between 80 to 120 rounds of 6.5 super creedmoor which fires a 180 trainer at 3300fps from a 20 inch barrel. And every soldier carries a fn p90 with 250 rounds in total which they can use for anything out to 200 yards.

It was a good idea on paper until some asshole anon started going full negative Nancy on everything, especially once I started trash talking the xm7.

The xm7 is a shifty gun paired with a shifty pistol. My idea is better, each soldier gets paired with a dmr for medium to long range and a p90 for close range.

The magazines for the p90 are held against the thigh while the 6.5 are held against the chest and underneath arm pits.

I even had a dream this morning where the us army liked my idea of equipping soldiers with a p90 as their secondary, they like my idea and gave me a medal.

Drop the handgun and equip the p90, and equip a 20 inch barrel dmr for precision targeting.

>>63866220
you're a good troll I'll give you that one m8

>>63866146
And also, you're probably thinking but where will the p90 go? Horizontally or vertically along their back which is held in place via a strap.

>>63866230
It's a legitimately great idea. My dreams even told me it was a great idea.

A dmr for every soldier with 80 to 120 rounds of ammo and a p90 with 250 rounds in total for house clearing/suppressive fire.

Its beats carrying a xm7 and a useless handgun.

>>63866220
It’s funny how you think every cartridge is a version of 6.5 creedmoor because you could in theory go from 6.5creed to any other cartridge by performaning a case transformation. “Just increase the 6.5 creedmoor case head, just stretch the case out longer.” A 50BMG is just a transformed version of 6.5 creedmoor necked up to .510.

>70% of gunfights happen within 100 yards.
True, which is why the soldier’s primary weapon must be optimized for engagements within this range. You still need some capability to fight at slightly longer ranges, but at extreme ranges like 800 yards, they happen so infrequently that you can just give one guy in the squad a rifle with that capability. It’s pointless to give everybody a completely different species of rifle with all its extra cumbersomeness on the off chance they have to engage at 800yds

Also, your 6.5BMG (yeah it’s me, I got some sleep and I’m here to keep dunking on you) is absolutley not necessary for 800 yards. Your 6.5BMG is more like a 1-2 mile cartridge. A ~1500ft*lb cartridge with a long and heavy .224 bullet is just fine for 800 yards.

>I need to penetrate level 4 armor at 100 yards
>I need a P90 for this

lol. P90 can’t do this, I hope you know

You still haven’t explained how you expect everyone to carry, on top of a fuckhuge and heavy rifle, a secondary p90 with, at this point, 5 magazines. Are they holstering? Are they slinging? Are they carrying it in a wagon they drag around with them? Don’t duck the question. The p90 has volume and mass and so this is a real consideration.

>>63866236
>source: it was revealed to me in a dream

Ok Ramanujan

>>63866462
Negative Nancy

>>63866462
Just het stronger if you're worried about carry weight. If you're too weak then why would you ne in the military anyways

>>63866493
Why would you be in the military

>>63866462
P90 mags on thighs, p90 slinged underneath left or right armpit. 3 to 4 rifle mags on front, rifle slinged on front.

Pretty simple

>>63866493
Because regardless of how much you can deadlift, your carrying capacity is finite. You’ll always be more agile and nimble, and with more stamina if you’re carrying less weight. A lighter gun and lighter ammo also means way more ammo carried.

Even One of those weird 2 barreled guns in 2 different chamberings are an improvement over your retarded idea of giving everybody 2 gigantic guns and heavy ammo weighing a total of like 50 pounds

>>63866503
Stop being weak you fucking pussy and go lift some weights.

Stop being a little bitch over "muh two guns are heavy".

If you're weak then just get stronger.

>>63866502
>3-4 rifle mags

I assuming there’s one in the gun. You’re anticipating 25-30 round mags? These are cartridges no smaller than 338 lapua. Try 15 round mags, tops. So like 8 mags

Why not stick a telescoping stock on a pistol and call that your 0-100yd gun?

>>63866508
Are you Indian?

>>63866509
They implied the casing is simply elongated so in a regular ar10 magazine is just lengthened so 20 rounds still in each magazine, that means your carrying 4 to 5 mags on the chest

>>63866515
>”they”

Hah, ok. Anyway, OP, we’ve already established that the case can not be any smaller than 338 lapua (and that’s at 100kpsi). So if you’re not increasing the case head diameter, then to preserve internal volume, you’d need a cartridge case like 6 or 7 inches long.

>>63866530
Don't always trust those calculators

>>63866535
This is your argument? “The calculator must be wrong”. You think a case volume smaller than ~115gr can yield 5000ft*lbs through a 6.5mm bore?

You’re giving a masterclass in dimwit cope, by the way. This thread ought to be preserved for posterity.

>>63866554
Negative Nancy

so this is the caliber autism thread? is it worth it to go above .44magnum in handguns?

>>63866561
it's not even worth going above 9mm in handguns why would it be worth going above 44mag?

>>63866561
Juts go with blue tip 5.7, the fort hood shooter did great with that

>>63866561
No, unless you live somewhere with an extended season for handgun hunting in which case T/C Encore with a barrel for your preferred rifle cartridge is practical.

>>63866561
The best handgun bullet is a 6.5 creedmoor shortened to 3/4 inch case length and necked up to .355 caliber with a 115 grain creedmoor traveling at 1100 fps from a 4 inch barrel

>>63867531
Amen to that brother

>>63867531
Lmao

>>63867531