FRONTIER 300 BLACKOUT 125GR FMJ 20/2

Description

Hornady’s Frontier line was developed to give shooters a factory load built around the same projectiles Hornady sells to handloaders, assembled to a military-grade standard. This 125-grain FMJ load in .300 AAC Blackout is a supersonic load, which means it cycles reliably in a standard direct-impingement AR platform without any tuning or adjustable gas block work — a practical consideration for anyone running this caliber through a dedicated upper or a converted rifle. The full metal jacket construction keeps feeding smooth and consistent across a range of chamber temperatures and shooting volumes, which matters during longer range sessions where heat buildup can cause some expanding projectiles to behave unpredictably.

The brass cases are boxer-primed and reloadable, so there is real value in picking up your brass. Military-grade boxer primers offer consistent ignition across the cartridge’s pressure curve, and the propellant is selected to function reliably rather than to extract the last few feet per second from a test barrel. At 125 grains this bullet sits at the heavier end of the supersonic .300 Blackout spectrum, which gives it a sectional density and ballistic coefficient that holds velocity better at distance than lighter supersonic options — relevant if you are using this load for anything beyond the 100-yard line. The Lake City production heritage behind the Frontier line reflects a manufacturing standard oriented toward function and uniformity rather than precision benchrest accuracy, making this load a sensible choice for high-volume training, function testing, and general range work.