BCA says this is normal for all new barrels and to shoot more to wear the sharp lug corners. Problem is i reload and Beowulf brass isn't cheap. These cuts are pushing into the case walls and if i continued to use them like this i feel like a cut in the same area could puncture the case. Not to mention the carving of my bullet from the feed ramp.
Could anyone give me some tips; tools needed, videos, instruction on how to round/polish this chamber?