The SBR Ammunition Full Metal Jacket Line is used as a general purpose cartridge. An accurate bullet with the 458 SOCOM ogive profile makes for flawless functioning. Great for target shooting, plinking, weapon function testing or just breaking in the 458 SOCOM beast. This subsonic version is great in SBR Brand suppressors. SBR is one of the first manufacturers to offer loaded ammunition for the exciting new 458 SOCOM round, offering several different and potent loads for practice, hunting or defense. 458 SOCOM was developed by a group of Special Forces members searching for a round with extreme knockdown power. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.