One concern I have with this talk of 7.62x39 is that quite frankly, it's a toy cartridge. With all this talk of cheap surplus ammo, it pretty much reinforces my view that 7.62x39 is mostly used for shooting beer cans and washing machines. I don't subscribe to the idea that the zombies will rise and we will need all that surplus ammo for fending off the hordes. Nor do I think that Red Dawn will ever happen. Really, if this project turned into an bullpup version of an SKS, well, forget it. At least choose a cartridge that is useful, the .308 is a good choice. At least a .308 you can use for serious hunting. If I needed a Non-Res for hunting pop cans, I would buy an SKS.