Hornady Frontier 5.56mm NATO 55gr FMJ Rifle Ammo - 50 Rounds - American made and built on tradition ?c these are the hallmarks of Frontier Cartridge. Frontier Cartridge features Hornady bullets and is the applications range from plinking, target shooting and hunting to law enforcement training and self-defense. State-Of-The-Industry Loading Techniques And Quality Control Procedures Ensure The Reliability Of Every Frontier Cartridge Round; 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; 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; ;