Sellier & Bellot 300 Blackout 124gr FMJ – 20 Rounds

Sellier & Bellot's 300 Blackout 124-grain FMJ load delivers subsonic performance ideal for suppressed shooting and tactical training. The full metal jacket bullet construction ensures reliable feeding and consistent terminal ballistics at reduced velocities, making this ammunition a practical choice for shooters who prioritize sound suppression without sacrificing reliability. The 124-grain projectile stays subsonic in most barrel lengths, minimizing sonic crack while maintaining adequate energy for both training and defensive applications.

This ammunition feeds reliably in AR-15 platform rifles chambered in 300 Blackout, bolt-action rifles, and other firearms designed for the cartridge. Loaded with non-corrosive Boxer primers in reloadable brass cases, these rounds are available in 20-round boxes or 1,000-round cases for volume shooters. Sellier & Bellot's consistent manufacturing standards make this a dependable option for extended range sessions and suppressor use.

• Caliber: 300 Blackout (.300 BLK)
• Bullet Weight: 124 grains
• Bullet Style: Full Metal Jacket (FMJ)
• Muzzle Velocity: Subsonic (~1,050 fps typical)
• Box Count: 20 rounds
• Case Count: 1,000 rounds (50 boxes)
• Case Type: Boxer-primed brass
• Primer: Non-corrosive
• Use: Suppressed shooting, training, tactical applications