Re:The AK-47
by walrus01 on Monday August 08, 2022 @03:10PM
(#32389647)
> 80,000 psi is pretty extreme in a rifle round. The high end of traditional brass case ammunition is 65,000 psi.
It is pretty extreme but I can't say I'm exactly surprised, metallurgy has clearly advanced quite a bit since the days when 556 NATO pressures in chamber were standardized 50+ years ago. If you have DoD budget levels of money to spend on a barrel you can clearly do higher.
Barrels that meet 556 NATO spec are as cheap per unit as $100, a really nice one is $300. If it's not a problem that your barrel alone might cost $700 I can see this being totally possible.
It is pretty extreme but I can't say I'm exactly surprised, metallurgy has clearly advanced quite a bit since the days when 556 NATO pressures in chamber were standardized 50+ years ago. If you have DoD budget levels of money to spend on a barrel you can clearly do higher.
Barrels that meet 556 NATO spec are as cheap per unit as $100, a really nice one is $300. If it's not a problem that your barrel alone might cost $700 I can see this being totally possible.