Underwood 300 AAC Blackout ammunition loaded with a 110-grain flat base spitzer projectile and sold in boxes of 20 rounds. This is new production, non-corrosive ammunition in nickel-plated, boxer-primed brass cases that are reloadable. The projectile is a copper-lead construction with a diameter of 0.308 inches and a listed muzzle velocity of 2400 feet per second and muzzle energy of 1407 ft-lbs. The load is noted for hunting applications and is specified as safe for use in a suppressor.
Key Specifications
- The cartridge is .300 AAC Blackout (7.62x35mm).
- The projectile is a 110-grain flat base spitzer tip.
- The bullet diameter is 0.308 inches.
- The listed muzzle velocity is 2400 feet per second.
- The listed muzzle energy is 1407 ft-lbs.
- The cases are made from nickel-plated brass and are reloadable.
- The primer type is boxer primed.
- Projectile composition is copper-lead with lead.
- Ballistics are listed as G1 BC 0.29; SD 0.1656506759.
- Each box contains 20 rounds and is specified as safe for use in a suppressor.
Consistent components and reloadable cases make this load a practical choice for field use and general-purpose shooting where supersonic performance is desired. Its combination of sectional density and listed velocity supports predictable external ballistics for hunting and defensive-oriented use without unnecessary embellishment.









