My bolt was hanging up at the same point that it does after the last shot.

[BirdTown]

I took my bolt and trigger out and found the part that captures the bolt was not true on the top that slides on the bolt as it recoils back. I stoned this flat and polished it w/2500 paper as well as the area of the bolt that is in contact, lubed and shot 200 rounds 1/2 Wally Winchesters and 1/2 Wally Feds, O problems.

[adamge]

Matt K has a video on that issue as well: