Frontier cartridge features Hornady bullets in 5.56 NATO. Applications range from plinking, target shooting and hunting to law enforcement training and self-defense. American made and military grade are the hallmarks of Frontier cartridge, a new Hornady division. Features: Consistency in every cartridge - state-of-the-industry loading techniques and quality control procedures ensure the reliability of every Frontier Cartridge round Rounds for all applications - rontier 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 Brass cases - in addition to Hornady target friendly, non-steel core bullets in a variety of offerings, frontier cartridge features brass cartridge cases and military-grade boxer primers and propellant