Quote Originally Posted by charlie b View Post
What he is referring to is that some mfgs who cut 7.62x39 barrels are using a groove dia of .308, not the .311 that the AK's use.
What I'm saying is it doesn't matter as much as people think. I've loaded .311's for a .308 bore and vise-versa with outstanding accuracy in both directions. It's a bit of a myth that keeps perpetuating itself that it matters so much. But people who have never tried it read stuff on the internet and just take it as gospel I guess.