Hyperion Munitions 300 Blackout 220gr FMJ Ammunition - 50 Round Box

The Hyperion Munitions HMBX300BLK22050 delivers subsonic performance optimized for suppressed shooting applications. This 220-grain full metal jacket ammunition provides consistent cycling in both bolt-action and semi-automatic platforms chambered in 300 AAC Blackout.

What Makes This Different

The 220-grain projectile weight keeps velocities subsonic while maintaining effective terminal performance at extended ranges. Standard 300 Blackout loads typically use lighter bullets that break the sound barrier, creating sonic cracks that defeat suppressor effectiveness. This heavier grain weight maintains subsonic velocities from barrel lengths ranging from 8.5 inches to 16 inches, maximizing suppressor performance across different platform configurations.

Key Features

• 220-grain full metal jacket projectile for consistent penetration and accuracy
• Subsonic velocity reduces noise signature when used with suppressors
• Brass cases suitable for reloading applications
• Compatible with AR-15 platform rifles and bolt-action systems
• 50-round packaging provides adequate supply for range sessions
• Non-corrosive primers ensure reliable ignition and barrel protection
• Boxer-primed cases facilitate easy reloading procedures

This ammunition performs effectively in hunting scenarios requiring reduced noise signatures and maintains accuracy standards suitable for precision shooting applications. The heavier projectile weight provides better wind resistance compared to lighter 300 Blackout variants, extending effective range capabilities. Law enforcement and military applications benefit from the reduced acoustic signature when tactical situations require discretion.

Technical Specs

• Caliber: 300 AAC Blackout (.300 BLK)
• Bullet Weight: 220 grains
• Bullet Type: Full Metal Jacket (FMJ)
• Case Material: Brass
• Primer Type: Boxer, non-corrosive
• Quantity: 50 rounds per box
• Velocity: Approximately 1,000 fps (subsonic)
• Compatible Platforms: AR-15, bolt-action rifles

Professional shooters select this ammunition for applications requiring subsonic performance without sacrificing terminal effectiveness. The consistent manufacturing standards ensure reliable feeding and extraction across different firearm platforms. Stock levels fluctuate based on current market demand for specialized 300 Blackout ammunition.