I built a 20 Practical on a Model 10 22-250 I got from a pawn shop; so I have no history with the action. When lifting the bolt to eject, it sticks right before the last 1/16" or so of travel. Often I must hook my thumb over the scope to get the leverage to rotate it the last little bit out of battery to release and pull back. It's quite annoying. I can feel it on an empty chamber, but it's only really an issue with fired rounds.

I'm curious if anyone has encountered this or knows how to address it. I can see this occurs right when the ball bearing on the collar at the back of the bolt needs to pop into a groove on the bolt, but I don't know if that is cause or coincidence.