New 870 barrel problems

[tango3065]

I orderd a new 18" barrel for one of my 870's and it is very hard to chamber a shell. i have found the problem and it is the opening of the chamber is very sharp and the hull is getting shaved by this. I can chamber and eject a shell without firing it and you can see small bits of plastic and the the hull has rough places on it.

Now heres the question can I take some fine emery cloth or a smooth trigger wetstone around the opening to dull it up, has anyone done this?

 

[dfariswheel]

Certainly. Just as long as you don't start grinding away excessive amounts of the chamber, this should work well.

What you want is a slight bevel of the sharp edges.

 

[Dave McCracken]

I'd use a crockstick to SLIGHTLY radius that sharp edge just enough to fix this. Go easy....

 

[tango3065]

Is this a common thing, and I am guessing that shooting a few thundred rounds usually dulls the sharp edges?

 

[dfariswheel]

It SHOULDN'T be common, but Express models ARE Remington's "budget" model where corners are cut to hold the price down.

Since steel is a lot harder than plastic, it'd take a while before the sharp edges wore smooth.