The Underwood Ammo 951 Custom Competition 8.6 Blackout 300gr Hollow Point Boat Tail cartridge is built for precision-focused shooters who demand consistent subsonic performance. Loaded with a 300-grain Nosler Custom Competition hollow point boat tail bullet seated in nickel-plated brass, this round is engineered for smooth feeding, reliable extraction, and stable flight at match-grade standards.

This 8.6 Blackout load is optimized for suppressed rifles, delivering a subsonic muzzle velocity of 950 fps from a 12-inch test barrel for reduced report and excellent control. Its copper-lead hollow point boat tail design supports aerodynamic efficiency and predictable terminal behavior, making it well suited for competition, long-range practice, and serious training. Underwood Ammo’s careful hand-thrown powder charges and small-batch craftsmanship reflect the brand’s reputation for precision and consistency.

Key Features:

• Manufacturer: Underwood Ammo
• Model: 951 Custom Competition
• Caliber: 8.6 Blackout
• Bullet Type: Hollow Point Boat Tail
• Bullet Weight: 300 Grains
• Case Type: Nickel-Plated Brass
• Muzzle Velocity: 950 Fps (12" Test Barrel)
• Muzzle Energy: 601.6 Ft-Lbs
• Rounds Per Box: 20
• Velocity Rating: Subsonic
• Suppressor Safe: Yes