Smith & Wessonsuccessfully pushed the performance envelope in 2003 with its .500 S&W Mag. cartridge—the most powerful, production pistol cartridge in the world. Two years later, the company began chasing revolver velocity records by taking the .454 Casull cartridge case, lengthening it and increasing the max pressure to 65,000 p.s.i. That cartridge was called the .460 S&W Mag. and is the chambering of choice for this week’s review pistol from Smith & Wesson’s Performance Center, the 460XVR—a custom-tuned, 78-oz., double-action revolver with capacity for five .460 S&W Mag. rounds. Learn more about it in the video embedded above, hosted by American Rifleman'sChristopher Olsen.