New Injection-Molded Stainless Cartridge Cases

[grayfox]

Brass in a rifle chamber can withstand 60, maybe 62 ksi like the creedmoors. So the limitation is not the cartridge, the issue is the bolt, and the short-limit of the AR mag length. Why not an AR “12.5”, a blend of 10/15. IMO you’re getting problems you don’t realize by trying to go up to 80 ksi levels. A “12.5” could have a longer and slightly fatter case to get more MV yet less than 308 case length.
last, how does this stainless case expand to seal during firing?
so, wait n see for me…