My Remington 870 Express was having a real problem jamming with cheap rounds. I was told to polish the chamber with steel wool on a cleaning brush to help eliminate this problem. It did eliminate the problem but now the bolt opens when I fire the gun, sometimes all the way and sometimes just a bit and sometimes not at all. This seems wrong to me as I have a old Wingmaster that does not do this. Also, the forearm does not move at all which seems odd because the bolt rests on the two arms connected to the forearm.
Is this normal or did I screw something up ?
Is this normal or did I screw something up ?