Remington UMC 300 Blackout 220gr Open Tip Flat Base Ammo - 20rd Box

The Remington UMC 300 Blackout 220gr Open Tip Flat Base ammunition delivers subsonic performance optimized for suppressed firearms and close-range applications. This heavy-grain loading maximizes energy transfer while maintaining reliable cycling in AR-15 platform rifles and other 300 Blackout firearms.

What Makes This Different

The 220-grain open tip flat base design provides exceptional expansion and energy dump compared to standard FMJ rounds. This subsonic loading operates below the sound barrier at approximately 1,050 fps, eliminating the sonic crack that compromises stealth applications. The flat base construction ensures consistent powder burn and improved accuracy over boat-tail designs in shorter barrels common to 300 Blackout platforms.

Key Features

• 220-grain open tip flat base bullet for maximum expansion and energy transfer
• Subsonic velocity reduces noise signature when used with suppressors
• Boxer-primed brass cases suitable for reloading applications
• Optimized powder charge for reliable cycling in 8-16 inch barrel lengths
• Open tip design enhances terminal ballistics for hunting and tactical use
• Flat base construction improves accuracy in shorter barrel configurations
• Factory-loaded to SAAMI specifications for consistent performance

This ammunition excels in hunting applications where quiet operation is essential, particularly for hog control and predator hunting. The heavy bullet weight maintains energy at extended ranges while the open tip design ensures reliable expansion on game. Law enforcement and military users appreciate the reduced noise signature for urban operations and training environments where sound suppression is critical.

Technical Specs

• Caliber: 300 AAC Blackout (7.62x35mm)
• Bullet Weight: 220 grains
• Bullet Type: Open Tip Flat Base
• Muzzle Velocity: Approximately 1,050 fps
• Muzzle Energy: Approximately 540 ft-lbs
• Case Material: Boxer-primed brass
• Quantity: 20 rounds per box, 10 boxes per case
• Manufacturer: Remington Arms Company

Remington's UMC line represents decades of ammunition manufacturing expertise at an accessible price point. This 300 Blackout loading provides the subsonic performance required for suppressed applications while maintaining the reliability expected from a major manufacturer.