I shoot Trap with my 520, but only Singles.
Every time I shoot doubles, part #53 (see here: http://www.gunpartscorp.com/Manufact...348.htm?page=5 ) disconnects from the block, so the foregrip just slides back and forth! This ONLY happens when I have one in the barrel, and one in the magazine. I shoot the one in the barrel, and then PUMP, and thats when it disconnects!
I have never had this issue with just singles. I normally insert the shell right into the barrel, and then close the breech. Also can also load it from the bottom, or from the magazine tube... but only with ONE shell. If I SHOOT, then cycle ANOTHER shell, the handle disconnects. It seems the gun knows when there is 2!
I have checked and rechecked for worn parts, but nothing looks particularly worn down. Also everything is nice and tight including the front of the magazine tube that if twisted lets you take the gun apart. I have tried to recreate the issue with snap caps with no avail.
Anyone run into this issue?
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