Product Features Consistency in every cartridge State?of?the?industry loading techniques and quality control procedures ensure the reliability of every FrontierA(R) Cartridge round. Rounds for All Applications FrontierA(R) 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 HornadyA(R) target friendly, non?steel core bullets in a variety of offerings, FrontierA(R) Cartridge features brass cartridge cases and military?grade boxer primers and propellant.