Barnes Suppressor Series 300 AAC Blackout 220gr Sierra GameKing - 20 Rd

Barnes Suppressor Series 300 AAC Blackout 220gr Sierra GameKing - 20 Rd

The Barnes Suppressor Series 300 AAC Blackout 220gr Ammo is purpose-built for shooters who demand maximum suppression performance, precision accuracy, and ultra-clean operation. Designed specifically for use in suppressor-ready firearms, this premium .300 AAC Blackout subsonic ammunition delivers a quieter, smoother shooting experience without sacrificing consistency or reliability.

Loaded with high-performance Sierra projectiles, this 220-grain subsonic round offers exceptional stability and accuracy—making it ideal for target shooting, precision work, and suppressed platforms. Its advanced clean-burning propellant reduces gas blowback, helping improve shooter comfort while maintaining reliable cycling in semi-automatic systems.

Engineered to meet Barnes’ exacting standards, the Suppressor Series is optimized for shooters who value stealth, control, and repeatable performance. Whether you're dialing in your suppressed rifle setup or refining your accuracy at the range, this ammunition delivers consistent velocities, reduced report, and match-grade results.

Subsonic Performance
Designed for quieter shooting when paired with suppressors.

220 Grain Sierra Projectiles
High-quality bullets for enhanced accuracy and consistency.

Clean-Burning Propellant
Reduces gas blowback for improved comfort and cleaner operation.

Optimized for Suppressors
Enhances sound reduction and smooth cycling in semi-auto platforms.

Match/Target Accuracy
Ideal for precision shooting and consistent grouping.

Reliable Feeding
Engineered for dependable function in modern .300 BLK firearms.

Premium Construction
Manufactured to Barnes’ strict quality standards.

Specifications

• Cartridge: .300 AAC Blackout
• Bullet Weight: 220 grains
• Bullet Type: Jacketed Lead Core (Sierra projectile)
• Ballistic Coefficient (G1): 0.629
• Ballistic Coefficient (G7): 0.313
• Velocity Type: Subsonic
• Purpose: Match / Target
• Rounds Per Box: 20