Product Number: FRFR100C Frontier Cartridge features Hornady bullets in 223 Rem and 5.56 NATO. Applications range from plinking, target shooting and hunting to law enforcement training and self-defense. 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 Frontier 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.