My plan is to take a barrel chambered in .308win, cut off enough of the chamber end to headspace 7.62x39.(a lot more detailed than that, but that's the reader digest version).
I'm wanting to fire 7.62x39 surplus on the cheap and thinking commercial ammo will fireform to practically .30BR. I am not sure if the steel case ammo will fireform at all.
Has anyone done this? And how did it work out? I'm not expecting spectacular accuracy from the surplus, just want to try this for some cheap plinking out of a bolt gun.
For what it's worth, the rifle is a Stevens 200 that started life as a 30.06 and is currently a 6.5x55swede. I have read that the standard extractor may or may not work for the Russian case. I have a single shot adapter on hand, so I won't bother fighting with getting a magazine to feed(especially that short round in a long action).
Anything I am missing? Or just a bad idea?