usmc1963
.410
Picked up my 590A1 with XS ghosts ring sight and after a good cleaning I went to the range and after about 30 rounds the gun started to miss picking up a shell from the magazine tube about one in five rounds. Then it started to increase to about every other round until it would not feed at all. After returning home and disassembling the shotgun. I realized that the shell stop was not releasing a shell from the magazine tube. With the slide all the way to the rear I noticed that the tap on the cartridge stop had moved to the front of the forend action bar so that the cartridge stop could not be actuated, it should be behind the action bar. A very slight bend to the cartridge stop corrected the problem. Just got back from the range and the gun was 100%. I also called Mossberg and they are sending me a new cartridge interrupter and cartridge stop.
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