The fame of the M500 revolver from Smith & Wesson comes from its large caliber. This gun has a 0.50-inch caliber, which is 12.7 millimeters, and fires powerful 0.50-inch Magnum pistol cartridges. Due to the size of the bullets, while normal revolver chambers can hold six rounds, this one can only hold four. It's worth specially pointing out that the kinetic energy of the bullet it fires is double that of the renowned .50 caliber "Desert Eagle." At 3517 joules, it has reached the kinetic energy level of powerful rifle cartridges.