daytong40

My sbe 3 is firing the first shot fine, but time to time the bolt will lock back with the shell just resting on the lifter. if I smack the bolt forward and it will feed but that's not ideal obviously. Occasionally when racking the gun the bolt will sometimes stick to the rear without pressing the shell release to lock it back, it will just stick back but you can just tap it forward. Any ideas what could be causing this issue?