squirming

  1. Stringer

    Gunsmithing M700 squirming bolt

    When I dryfire my 700 on an empty chamber, the bolt moves forward about 0.020". It seems like the sear and firing pin mechanism pull the bolt rearward. The large 0.020 (measured with feeler gauges) concerns me. When I put a dummy round in the chamber and dryfire, the bolt twists slightly...