I have a 460V S&W magnum X-frame with a five inch muzzle brake equipped barrel. I had it highly customized by Cylinder and Slide and by Bowen Classic Arms. TK Custom also altered the front of the cylinder to accept their stainless steel moon clips. I used 45 ACP TK Custom stainless steel moon clips and using Starline brass from Sedalia, Missouri in 460 Rowland and 45 Super and 45 Winchester magnum all fit and function with the 45 ACP moon clip. Had a Cylinder and Slide extra length firing pin installed so no moon clip is needed for shooting 460 S&W magnum, 454 Casull, 45 Colt and 45 Schofield. My favorite ammunition flexible revolver platform. Walk about anywhere and feel confident of being able to defend against any predator or big game of dangerous persuasion. What modifications do you like?