>>64029655
>Suffice it to say, this testing indicates that there is at most a 120 feet per second benefit to adding 10 inches of extra barrel to build up pressure behind the projectile.
Funny how your testing didn't put any barrel length in between. Fact, you could reach that velocity with fewer inches. Unless you're going out of your way to find rare handgun ammo with slower-burning powders (or are making your own), you could be using an 8-14 on any non-revolver cartridge PCC.
>Sorry, but that just doesn't make any sense and it would suggest that there
>is no benefit to building rifles the way we do in the first place.
If it weren't for SBR laws preventing consumers from putting real stocks on PCC unless its 16" or longer, we'd see that all the PCC (shooting autoloading handgun cartridges) on the market would have shorter barrels. Your preferred 18 inches would be better served in a .45 LC, .357 Magnum, .44 Magnum, etc.
>>64029841
>I care about the science of how guns actually work.
HAHAHAHA, you disingenuous retard. Why'd you omit every barrel length before 18" then? You can see diminishing returns in PicRel

>>64029672
>There is no fucking such thing as "the sweet spot" the sweet spot is whatever someone wants it to be depending on propellant load, what pressures a barrel can withstand safely, projectile size, weight and cartridge design.
Fine, I'll amend it to "8" to 14" is the sweet spot for most commercially available 9mm loads," handloaders with custom guns need not feel offended.

>>64031940
Brave Browser tells me your link is unsafe. Let's call Brave "Coward Browser" instead from now on.