Jams in pump guns?

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I would love to have a rifle sighted smooth bore for mine but try to find em and when you do you can buy an 870 with 2 barrels for the about the same price.

I haven't priced any barrels for them, but before they stopped manufacture the barrel you mention was very inexpensive. I wonder if the Turk barrels are interchangeable with the genuine article? there is also a Chinese knockoff of the gun.
 
The biggest problem with pumps is operator error when they short stroke the gun. Meaning they get in a hurry and try to push the forend back forward before it has come all the way to the rear and ejected the empty shell.

Any quality gun in good working condition should work even if operated slowly, but operating the gun briskly ensures the operator moves the action all the way to the rear. Lever action rifles can suffer the same issues and work more reliably when the actions are operated briskly.
 
BTW I had a disturbing failure of my new Supernova today.

I loaded 5 shells, racked the first shell and it jammed. It appears to have tried to let 2 rounds onto the carrier. I had to unscrew the magazine and empty the shells, relieving pressure on the carrier. There didn't seem to be anything wrong with the ammo. The gun has fewer that 50 rounds through it and has already failed.

I chose to purchase a pump shotgun for its reliability. Now I am worried. I'm not sure I can ever rely on this thing.

H.
 
Are the new ones any quieter than the old ones? they supposedly tightened tolerances and made them quieter, but i have not handled one since the 90's.

My 535, a newer gun, is quite tight by comparison to my 20 year old 500. It's a different model, but really, it's just a 500 with a 3.5" chamber. My old 500 is a camo/plastic gun, tough as nails. I will need to wax this 535 and shim the stock for a little better fit before I start waterfowling with it. It's wood and blued steel. I really didn't know Mossberg had tightened up the newer guns, not a big deal with me. I think the looser gun, like a looser 1911 vs a comp gun, can take the muck and crap I put the gun through a might better than a tighter one, perhaps....I say perhaps because I know a lot of guys that have no problems in the same environment with other brands. I just don't have a problem with how loose it is. I don't deer hunt with it. I don't use shotguns on deer, that's why God invented the bolt action rifle. :D

I will agree that i have caught the tip of ill fitting gloves in the elevator on an 870, but have never pinched a finger. I don't think the elevator is too much of a bother...after all the mossberg elevator is remington's design and they stopped using it in favor of the 870 type and let mossberg run with it. Like i said it just never felt smooth to me.

It always happened while duck hunting and my finger was numbed from the cold. Warm weather, it never really bothered me, but when you're knee deep in mud and water is not the time you wanna pull a gun apart. I always was able to clear it with a pocket knife pushing the shell back in from beside the elevator, though.

The Mossberg elevator is up when in battery, out of the way. Even if you slip and the round flies back, it has nothing to fly back under and jam the action as the elevator is in the up position.

The way I do it on my Winchester is hold the elevator up with my off hand, but sometimes when the birds are flying, I get in a hurry.
 
Can someone pipe up about how their Winchester 1200/1300 pump runs the cheap steel-based ammo?

Are you having extraction problems like many 870s have?
I've never had any ammo problems with my Winchester 1200 as far as problems with extraction, either steel based or brass based shells. The only times it has ever jammed up on me are times I tried to rush a second shot and didn't rack the pump all the way back to eject the empty shell, so it stayed in the ejection port and the new round wouldn't feed.
The gun doesn't have a spring operated ejector, and the bolt doesn't come flying back full-speed like with a semi-auto, so the forceful ejection of an empty shell to clear the gun depends on a full, vigorous stroke on the pump.
 
The way I do it on my Winchester is hold the elevator up with my off hand

This is what i always do now and it's become such a habit i don't even think about it.


I really didn't know Mossberg had tightened up the newer guns

It was sometime in the mid to late 90's (if i recall correctly) when they ran the ads claiming they tightened tolerances and made the actions quieter. I'm going to handle one and see how it feels as I've been wanting to try one of the newer ones out.


I don't use shotguns on deer

Turkeys don't like noisy shotguns either.


It appears to have tried to let 2 rounds onto the carrier

Your gun likely has a faulty shell latch.
 
Herbie it sounds like the pawl that holds your shell in the tube may be defective and allowing the extra round out on to the carrier, I've had this happen a few times with a worn out Mossberg and a 870. Take the gun down and make sure there isnt some crap wedged in somewhere that is impeding movement. My Nova tac has been my go to slug gun for a few years and has been superbly reliable with everything I have fed through it and is as accurate as a 30/30.
 
The only jams I have ever had with my 870 have been with Winchester bulk shells with steel hulls as others have said.
My 870 got leaps and bounds smoother and quieter when I finally detail stripped the whole thing and gave it a good cleaning and even disassembled, cleaned, and oiled the mag tube and forend sleeve.
 
Turkeys don't like noisy shotguns either.

I hunted turkey once, used my SxS Sarasqueta and took a tom. Only reason I used a shotgun was lease rules. You can legally hunt Rio Grandes in Texas with a rifle (national rules here :D) and I have this .22 mag Remington 597 that's 1.5 MOA accurate at 100 yards, much better turkey medicine than any shotgun ever made. If I'm forced to use a shotgun, I'll take my 10 gauge H&R turkey gun that, actually, I bought to shoot geese with. It patterns unbelievably well and a 3.5" 10 holds a lot of 6s.. Only need one shot.

PICT0240.jpg
 
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Herbie- Double feeds can be caused by not properly seating the last shell in the mag. When you load that last one shove her in deep to make sure the rim has gone past the shell stop and interrupter.
 
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I would love to have a rifle sighted smooth bore for mine but try to find em and when you do you can buy an 870 with 2 barrels for the about the same price.

I haven't priced any barrels for them, but before they stopped manufacture the barrel you mention was very inexpensive. I wonder if the Turk barrels are interchangeable with the genuine article? there is also a Chinese knockoff of the gun.

Uniquedot,

Thanks for the suggestion. I'll get out and check on that. I guess too if I can't find anything I can always take it to the LSG and see about having some kind of barrel mounted sights put on it. I am about 20 minutes from Williams Gunsite Co. so maybe they will have something. Might be sending it in for a choke tube install job too. I have a few sets of choke tubes laying around. It may help tighten those 00 buck patterns.
 
I have a new 870 with about 200 rounds through the original barrel. I've noticed on several occasions that extraction can be difficult with steel base shells (particularly Winchester). I followed the advice in AIP's video regarding polishing the chamber which reduced the problem but didn't completely solve it. While shooting yesterday I did experience several difficult extractions, as did a couple of my friends who also shot my gun.

I was thinking about this today while cleaning my gun. I recalled a discussion regarding the item oneounceload brought up in post #37 - tool marks on the barrel extension. Sure enough, there they were, three rings right behind the chamber. I dropped a shell into the chamber and simulated extraction using a small screwdriver. When a side force was applied (as by the extractor) it pushed the rim of the shell base into the tool marks, and the shells consistently hung up.

I cleaned up the tool marks and the extraction became much smoother. I'll test the gun at the range tomorrow to see if the problem is gone.

-Stan-
 
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The gun doesn't have a spring operated ejector, and the bolt doesn't come flying back full-speed like with a semi-auto, so the forceful ejection of an empty shell to clear the gun depends on a full, vigorous stroke on the pump.

That might explain the other part of the failures mentioned in the article. I could see where a lack of elbow grease could fail to get a shell out but I didn't see where it could cause jams/failures to feed.

I was thinking maybe it was that the shell would get caught on the ramp or something and, since it's plastic, enough ooomphh just deforms it enough to get going again.

But maybe it's what you're describing where the last shell doesn't get fully clear.
 
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