Yondering-
Hmmm. Guess I'll look at pushing a bullet into a case to check where the bands of the bullet sit in relation to the case mouth before proceeding any further.
Thank you.
That's not what I was getting at. It's the straight-ish part of the nose in front of the driving bands that can be a problem, depending on which version of the lube groove mold you got. I don't recall hearing anyone being happy with the tumble lube version in the 300 Blk. Powder coating these makes the problem worse too.
Best way to find out is to load up some dummy rounds and cycle them to figure out what works and what doesn't.
