I have a new 11-87 Compact 20 guage, doesn't have 20 rounds through it. although a bit stiff manually operating it, it works as it should. I bought a new Remington slug barrel for it and installed it. If I push it in deep enough to be able to put the foreend on, I can get the reciever to cycle manually. If I reinstall the original ventilated rib barrel all is ok. Any help is appreciated

So you're saying it won't cycle in auto with the slug barrel on? I don't have an 11-87 so let me do some digging.

Sounds like you just have a tight fitting barrel. Not all that unusual. Put the muzzle on a piece of cardboard on the floor and push down hard. That should do it.

Virginian wrote:Sounds like you just have a tight fitting barrel.

Except the OP's post seemed to imply the shotgun didn't cycle without assistance when the new barrel was fitted. That was my take.