CTDolan you jolted my memory with your mention of the 450/400. When I first started studying double rifles over ten years ago it was like trying to learn a foreign language. Much of the terminology was similar to what I knew when it came to firearms, but it was also so very different. On face, action bar, barrel lumps, rib extension, Greener crossbolt, rising bite, regulated, boxlock, sidelock, round action and so on and so forth. I was raised on lever action rifles, semi-autos pistols and rifles, revolvers and slide action shotguns. The world of the double seemed very arcane, but was also fascinating.However I've learned. I've never fired a double rifle, but I've still studied them. If I could afford one I wouldn't hesitate. Incidentally I read a rather interesting article a few years ago about an experienced African hunter from....I believe it was Spain....who finally satisfied a lifelong dream to take an Alaskan Kodiak Grizzly Bear. His weapon of choice was a fine English double rifle (I forget the maker - sorry) in 450/400. He got his bear and nobody thought he was being unrealistic in bringing such a firearm. It worked like a champ. I remember thinking how odd that a guy who had hunted Africa would have always wanted to go to Alaska, but then I realize it's all relative. For him Alaska would have seemed exotic. Africa us just across the Strait of Gibralter. Anyway doubles are amazing in my opinion.