Following this method I originally had about 0.060 protrusion. Using about a 1/4 turn I reduced protrusion to 0.050. The problem was cratering of primers (Federal 210M which didn't crater before) since there must be some wear in this well-used rifle. I may need to consider a new bolt head. I just carefully polished the tip and put everything back the way it was, for now.
Bookmarks