I have a Model 625 Mountain Gun in 45 Colt. I'm a big guy: 6' 3", 270 lbs, but I'd hate to try to hide that big, fat cylinder. And carrying that huge chunk of stainless steel would pull my britches right down in short order. I almost lost my pants carrying a Colt Series 70 once; most embarassing. When I carry concealed I stick a Model 638 in 38 Special in my pocket, and load it with the Speer +Ps developed for short barreled guns.