Optimized Subsonic Performance for Suppressed Platforms Commonwealth Ammunition’s .300 Blackout 220 Grain FMJ load is built from the ground up to maximize the potential of suppressed rifles. Featuring a heavy 220-grain projectile, this round stays comfortably below the speed of sound, eliminating supersonic ballistic “crack” while cycling smoothly through standard semi-automatic gas systems and short-barreled configurations.

Consistent Quality and Clean Cycling Whether running tactical drills, training on the flat range, or running suppressed carbine courses, Commonwealth Ammunition utilizes clean-burning powders and quality Boxer-primed brass cases to ensure reliable feeding and minimal carbon buildup. The heavy FMJ profile ensures consistent barrel stabilization and feeding from standard .300 BLK and STANAG magazines.

Key Highlights:

• Heavy Subsonic Projectile: 220-grain FMJ engineered to stay reliably subsonic across standard and short barrel lengths.

• Suppressed-Ready: Minimizes report and gas blowback, making it ideal for silencer use.

• Flawless Feeding: Smooth ogive FMJ profile ensures feeding reliability across AR-15 and bolt-action rifles.

• Reloadable Virgin Brass: Boxer-primed, factory-fresh brass cases suitable for high-volume reloading.

• 50-Round Packaging: Value-oriented box count compared to standard 20-round rifle packs.

Technical Specifications

Caliber: .300 AAC Blackout (7.62×35mm)

Grain Weight: 220 Grain

Bullet Type: Full Metal Jacket (FMJ)

Case Type: Factory Brass (Reloadable)

Box Count: 50 Rounds