Hornady Frontier Features Hornady Frontier ammunition in .300 AAC Blackout is American-made and built on the tradition of reliable high-quality loading delivering a 208 grain FMJ subsonic load specifically suited for suppressed shooting and subsonic training applications in AR-15-pattern and bolt-action rifles chambered in the versatile .300 Blackout platform. The 208 grain full metal jacket bullet operates at subsonic velocities in .300 AAC Blackout making it a reliable and economical choice for suppressor users who want to practice with a subsonic training load that mirrors the function and feel of their hunting or defensive subsonic loads without the cost of premium hunting projectiles. Frontier Cartridge s commitment to state-of-the-industry loading techniques and quality control ensures that every round in the box is built to the same specification for consistent reliable semi-automatic function through the complete range of bolt-action and gas-operated platforms chambered in .300 Blackout. For suppressor owners and .300 Blackout enthusiasts who run subsonic loads regularly and want an affordable American-made FMJ training option that delivers reliable function and consistent performance Hornady Frontier is the practical choice. Each 20-round box is manufactured to Hornady s quality control standards for dimensional consistency and reliable primer ignition ensuring repeatable subsonic velocity and consistent function in semi-automatic platforms that cycle subsonic loads through gas-operated actions. The 208 grain weight delivers a subsonic velocity profile in standard .300 AAC Blackout barrels making Frontier an ideal training analog for shooters who use premium subsonic hunting or defensive loads in the same platform. Hornady Frontier .300 AAC Blackout 208 grain FMJ is available for sale at GrabAGun for .300 Blackout suppressor users and shooters seeking American-made affordable subsonic training ammunition for high-volume suppressed range sessions. Hornady Frontier Specifications Manufacturer: Hornady Model: Frontier Caliber: 300 Blackout Grain Weight: 208 Gr Type: Full Metal Jacket Velocity: 1025 fps Subcategory: Rifle Ammunition Capacity: 20 Available At: GrabAGun