Me thinks you fellows from across the pond have been brain washed when it comes to " proof ". Why would anyone think a gun needs reproofing if a fellow is going to shoot a nitro load of 5000 to 7000psi ? That is at or under a BP load. The gun doesn't know what kind of powder you're useing - only how much pressure it's subjected to. You see, over here our guns aren't " proof tested " for BP or nitro. The only test done were at the factory when they were built. Most Americans think damascus barrels are unsafe [ unlike you ] and won't shoot them. The only ones who will are people like on this forum and they all know what kind of shells to shoot in them - low pressure, because we don't have a proof house to send them to. I believe it's been said that if a gun blows up in the chamber it was from to high a pressure - if in the barrel it was from an obstruction. Even if the gun in the picture was proof tested it wouldn't have helped - someone got a real hot reload in it. JMHO
