7mm backcountry is an odd chambering to introduce your 80kpsi cases to the world with. The applications of a magnum action do not place a premium on cartridge volume and mass. Intermediates would be far better served with peak alloy cases.
>>64133504
Dumbass confused gr and g
>>64134163
If you don’t like the word “grains” then use a different word. It doesn’t matter. It’s just a fine unit of measurement, 1/7000th of a pound. It works for extremely lightweight things like bullets and powder charges without needing to waste characters like “0.0024lbs” or whatever.
>>64133362
It’s not a lawyer thing. If the SAAMI spec for a cartridge specifies 60kpsi, then every barrel maker and action maker ensures their guns are capable of withstanding that - not 80kpsi loads. If one is to introduce some new 80kpsi cartridge, it can not be reverse-compatible with legacy chambers not designed for that bolt thrust. It’s not about people being retarded or litigious nonsense. My gun shouldn’t fit a cartridge that looks just like the normal cartridges but will blow it up.
I also want to see intermediate 80kpsi cartridges. And since 80kpsi now necessitates the creation of new chamberings, maybe we can finally get some sensible cartridge design with short cases and long ogive bullets. 5.56 can seriously be improved with such a process without exceeding its current dimensional envelope.
>shell shock cases
It’s hard to overstate the significance of NAS3 cases both allowing for higher pressure and lightening the case mass at the same time. All of this is tantamount to a drastic decrease in cartridge weight - about 3 grams saved per 5.56 case if you retain the same muzzle energy. ~1.4lbs per combat load. Feeding them from quad stacks saves even more weight, and using lighter but finer bullets saves even more. We have the tech now to give everybody a 350-400 round combat load of a 5.56-analog with zero weight penalty.
