For nearly 140 years, the Union Metallic Cartridge Company name has been synonymous with some of the finest ammunition made. Since its beginning in 1867, UMC has blazed a trail of innovation in cartridge-making excellence. UMC handgun ammunition is American-made in Lonoke, Arkansas, using first-quality, factory-fresh brass and clean-shooting Kleanbore® primers to provide an excellent value for practice, target shooting, and training exercises. This .357 SIG round is loaded with a 125 grain full metal case (MC) bullet, which is the equivalent of a full metal jacket (FMJ). The ammunition is new production, non-corrosive, and features boxer-primed, reloadable brass cases, making it a reliable and affordable choice for high-volume shooters.