Mossberg 410 Pump Issue
Action jams on close cycle.
Have disassembled, cleaned and reassembled. Was not dirty. Found no evidence of unusual wear markng. FOund no debris in action.
It will "jam" occasionally ... guessing about 50% of the time. Does not matter if it is cycling a round or empty. Does not seem to be associated with speed of the pump motion. May cycle fine 5-10 times in a row the jam. Or may jam on first stroke.
I noticed that the movement of the "Action Lock Lever" seems to be different when it jams from when it does not jam.
Stumped!.