Underwood subsonic rifle ammunition loaded with a 300-grain hollow point boat tail (HPBT) projectile for 8.6 Blackout rifles. The load is rated as subsonic and is listed as suppressor safe, with a published muzzle velocity of 950 fps when tested from a 12-inch barrel. Cartridge cases are nickel-plated brass and the ammunition is intended for rifle use and target applications.
Box: This product is sold per box and each box contains 20 rounds.
Case: A case is achieved by ordering 10 boxes, yielding 200 rounds total when a full case quantity is ordered.
Key Specifications
- The cartridge is 8.6 Blackout.
- The bullet weight is 300 grains.
- The bullet type is Jacketed Hollow Point (HPBT).
- Each box contains 20 rounds.
- Boxes per case are 10, totaling 200 rounds per case.
- The listed muzzle velocity is 950 fps.
- The listed muzzle energy is 601.6 ft-lbs.
- The case type is Nickel Plated Brass.
- Test barrel length is 12-inch.
- Suppressor compatibility is listed as Yes.
This Underwood subsonic loading provides a heavy HPBT projectile and nickel-plated brass cases for consistent feeding and extraction in compatible 8.6 Blackout rifles. Its subsonic profile and suppressor compatibility make it suitable for informed shooters seeking a stable, subsonic target or precision option.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
