from what i have researched and learned, obviously swapping the cylinder is needed, you would have to machine/drill the firing pin hole center then put in a bushing so the pin hole is centered instead of offset like in the C&B. And change the firing pin on the hammer. other than the machining and fitting a bushing, the rest is easy. i'm going to do it eventually, but in the distant future like when .45colt stops being about $50 per 50 or i get into reloading...