Remington 1100 loose piston seal and piston?

D

djc

New member
I recently bought a Remington 1100 and shot some target loads and slugs over Thanksgiving. Now it seems that the piston seal and piston are loose and slide back and forth when the action is open and I'm moving the gun around. When the action is closed, no sliding (of course). I don't recall the seal and piston sliding like this before shooting it.

One thing I did do midway through the shooting session was pop the magazine spring retainer to inspect the spring but I put it back into place and had no problems. I *think* this is when I started to hear the sliding noise. No idea if this matters.

I'm very new to semi-auto shotguns so forgive me if this is a stupid question but did I do something to cause this sliding? If so, how do I stop it? I've searched here and all over the net for related info and come up with nothing helpful and the Remington manual doesn't seem to help either.

I'm suspecting the slugs may have something to do with it? I think for heavier loads I may have had to change the rings/seals accordingly but I'm in the dark here.

Thanks in advance.
 
No it isn't, as far as I know. It shot fine over the holiday weekend, it's the sliding of the piston and piston seal that I noticed for sure when I unpacked the gun. No problems with the action. I'm hesitant to go test whether it will auto-load at the range until I can get more information on this issue.

I received some advice over at shotgunforums.com that I might have to replace the piston and piston seal. I'll keep fiddling with it.
 
Bad news, good news.

I had disassembled the 1100 for a good cleaning and the feed latch came off. Apparently this happens a lot and I'm going to have to take it to a gunsmith to be restaked. Good news is the gunsmith told me the sliding of the piston and piston seal is perfectly normal.
 
The piston and seal moving around does not matter. They will move especially after cleaning the magazine tube, as there is no fouling build up to hang up on. After shooting a few rounds, they may not move freely on their own, but will work when you fire the gun, as the gas drives through the ports in the barrel. One thing about 1100/1187's; make sure that there is not excessive oil on the magazine tube. It gums up with the fouling and will cause jams. I find it is best to scrub the tube with a wire brush, spray on WD 40, then wipe off ass much as possible.
 
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