Frontier Cartridge features Hornady bullets in 223 Rem and 5.56 NATO and .300 AAC Blackout. Applications range from plinking target shooting and hunting to law enforcement training and self-defense.CONSISTENCY IN EVERY CARTRIDGEState-of-the-industry loading techniques and quality control procedures ensure the reliability of every Frontier Cartridge round.ROUNDS FOR ALL APPLICATIONSFrontier Cartridge offers ammunition configured for a wide range of shooters and applications everything from plinking target shooting and hunting to law enforcement training and self-defense.MILITARY GRADEIn addition to Hornady bullets in a variety of offerings Frontier Cartridge features brass cartridge cases and military-grade boxer primers and propellant.