A friend showed me his Remington 870 shotgun that he just got. The end of the barrel, about 1 inch in shows a noticable bulge. Not big, but definitely enough to be visible to the naked eye. He was going to get a new barrel for the gun figuring that's all it would need. I really didn't have an answer for him other than perhaps to have a gunsmith check it out, however factoring in a gun smith fee and a new barrel and he's almost to the price of a new one. Suggestions? What would cause the barrel to bulge like that... besides the fact that something got caught in there? Would a simple barrel replacement be enough to have faith in the gun now being safe to shoot? He said the guy he bought it from told him he'd shot stuff even with the barrel bulge so it worked fine.