The only problem I've had with my abolt '06 is that I short stroked it one time after missing a buck on the first shot. The bold shoved up the second shell while spent brass still in the bolt. Jamed up momentarily till I could wedge the buck grunt call in there to unjam. Buck spooked right underneath my tree and second shot put him down for good. Just don't short stroke them and you'll likely never have a problem.