As I described earlier in this thread, I had my S-308 threaded in a lathe, locally by a gunsmith friend of mine. He's done several barrels for me, and so far no baffle strikes. He didn't need the barrel removed from my .308... His lathe is large enough to take the whole barreled action, and the back of a standard AK receiver can be clamped in a 4 jaw chuck, and the barrel indicated to true with the muzzle in a center. A friend had him do a VEPR and we had to press out the barrel for that one since the slant cut receiver wouldn't work in his lathe chuck. No biggie if you have the tools.