I have been meaning to get back on here and post this for a while now mabey some of you can explain what this is and how to fix it,here goes.
I have an 870 express 12ga that I bought for Home Defense with the factory 7 round mag extention and the 18'' barrel.I also have a regular 870 express 12ga with a 26'' barrel.I went to a skeet shoot a while back and put the 26'' barrel on the reciever of my HD gun, so I could get some rounds through the HD reciever and everything went well 100 + rounds of the cheap birdshot (with the aluminum casing) and no problems.
I then went to the range later with the 18'' barrel back on the HD reciever with some buckshot(brass case end), a couple slugs(brass case end), and some birdshot(aluminum case end) that I had lying around. The buckshot and slugs were no problem, but when I shot the birdshot with the aluminum casings they would get stuck and not eject when I pulled back, I might shoot 2 or 3 then could not eject 1 and I would have to hit the buttstock on the ground to be able to eject the round, then I might shoot 1 or 2 or 3 more then the same problem. and upon visual inspection the stuck casings looked the same as the ones that ejected.This happened only with the aluminum cased shells. Now some people may say that you should not shoot birdshot defense and while I agree with that my worry is that this is my SHTF gun and in a SHTF situation you have to use what ammo you can find.
So my question is, is the chamber on the barrel just tight and if so can I get a gunsmith to reem it out or do I have a more serious problem?
Any info on the matter will be greatly appreciated as I have found out from being here is that there is a wealth of knowledge here.