Looking for some help here. New the PCC and have noticed that if I don't cycle the bolt a few times prior to the buzzer going off, the bolt doesn't seem to fully cycle on the first round or two leading to a jam where I have to drop the mag, clear, and reload. I am using the JP bolt, and their silent captured spring. If I charge the bolt a few times (when I remember) don't seem to have this issue. I have noticed it with a couple different mags (Glock factory) and have cleaned them out so don't think that is the issue.
Any thoughts on the cause and how to correct?