Re: Cases sticking in chamber ...?
I just remembered a problem I had with my 300 Ultra upon closing the bolt. The headspace was set at .002", cases had only been fired two or three times but the cases where obviously tight when I tried to get the bolt closed on most of them. After much investigation, smoking the bolt face completely, several times, I found the case heads were hitting the off side of the bolt snout (rubbing the inside edge real hard) on the edge of the ring real bad. This was before the extractor ever tried to snap over the case head too. I new it was going to need a Sako extractor to fix it, because I was going to have to releive the inside edge with a stone on the dremmel to let the case move over and center up in the chamber as the bolt moved forward. A very little amount removed cured the problem and I've only had one case stick in the chamber at the range that failed to extract, as there just wasn't enough meat on the opposite side to back the extractor sufficiently with the hot load. A Sako extractor is a "must get" on it now or it simply can't be counted on. The counterbore obviously was not centered with the chamber, because the bolt face was perfectly concentric in every way. Smoking it up good is the only way I could figure this one out, and it took nearly all damn night to find it too. Another reason I think factory barrels really bite!