So uh... What's the most powerful cartridge we've managed with direct blowback?
So uh... What's the most powerful cartridge we've managed with direct blowback?
Originally posted by u/SaaxoM at 2025-06-28T04:59:42Z
The scrap pile provides once more! A single cut was already made, like it was meant to be.
Staacker, Nameless, and cat for scale.
Safety and practically issues aside, I want to know how much pressure can be wrangled, without having to actually do any work making a locking bolt. I know jack-shit about ammo, so feel free to point me in the wrong direction if you'd like. I fully expect this to end badly, but it's not like I'm going to do anything productive if I'm not trying this, lmao.
Again, practicality is out the window; it can be obscenely heavy. Closed bolt because it's scary enough already. AR-15 fcg almost certainly because I'm poor and I can print one.
Alternatively, a fence-post 37mm barrel is a pretty great size for a simple, square barrel sleeve. How feasible is a blowback 37mm? I remember PY2A (I think) working on one, but I haven't kept up on things.
Unrelated but I have to say holy fuck do I hate bolt-bounce.
Thanks for reading and have a fantastic weekend!