I had several failure to feed jams on my 870 (express) today. The shell to be loaded was not lifted quite high enough to line up with the chamber and it caught underneath the chamber. Each time it happened I pumped back and forward again then it fed fine. I suspect I was short stroking the action but I've never had that problem with other pump shotguns. I was trying to shoot fast each time it happened. I can work on a full pump stroke each time, but is there anything else to check? I pulled the trigger group and couldn't see any problem with the lifter movement.
The only recent change on the 870 was adding a Choate 3-shot mag extension but I doubt that's a problem since a shell was always available at the right time.
The only recent change on the 870 was adding a Choate 3-shot mag extension but I doubt that's a problem since a shell was always available at the right time.