Mausers are pretty precise and can be finicky. I had one one time with the exact same issue. The problem I found was that the collar/ring that goes around the bolt to attach the extractor was a bit proud and extended a fraction above the recess in the bolt. When the magazine was full the collar would catch on the rim, presumably going back, and then it would mess up coming forward so that the cartridge would ride into the chamber in front of the extractor.
I fixed it by stoning that collar so that it was no longer proud. But a weaker magazine spring might have worked too.
I couldn’t even figure out exactly how it was causing that particular problem. I just went looking for something that looked slightly wrong, found that, stoned it a bit, and it started working perfectly. Oh, and I believe it was a 6.5 too.
Last edited by JoeBob; 08/12/22.
