870 jams up

[Mark_VI_37]

I have an 870 express super mag and when im shooting it sometimes when i pump the shell doesnt come out of the magazine tube. I'd say out of 25 shots its jams 2 or 3 times. has anyone had this happen or does anyone know how to fix this? thanks

 

[Oldnamvet]

What brand of shells are you using?

 

[Regolith]

First thing you should try is thoroughly cleaning the barrel. When Remington ships a gun from the factory, they lube it up with this thick crud that will protect the steel but if its not cleaned off before use it can cause failures to feed.

Also, if you've had a gun for a long time and haven't been cleaning it, there could be some powder residue buildup that is causing the failures to feed.

If after a thorough cleaning it is still jamming, then try and change your ammunition.

 

[cat_IT_guy]

If you are using steel shells (cheap federals or winchesters) the 870 barrel is pretty tight for them since they expand more than brass. If you take it to a gunsmith, they will probably be able to tell you what your problem is as soon as you mention 870 and before you even tell them. Most will fix it for pretty cheap (I think mine was $25) or you can brave the warranty department. Basically they just shave a lil metal out of the barrel and my has worked much better since.

 

[mnrivrat]

the shell doesnt come out of the magazine tube

The OP is not having extraction problems, it is a magazine feed problem.

The shells are released from the magazine by the shell stops, which are regulated by the ramps on the action bars. If ammo is involved, it would be the rim of the case being slightly oversize from spec and not releasing from the shell stop - not unheard of, but not common either.

Sometimes the shell stops can get sticky due to either dirt, or factory preservitives, cleaning/degreasing is the first step in trying to resolve the issue. Then checking other brands of ammo, but guns should not be ammo sensitive. ( also make sure your not short stroking )

Then, shell stop adjustment or replacement which is something better left to a smith unless your a real handly person who has figured out exactly what needs adjustment, and how to do it.