8.6 Blackout 300gr Hornady HPBT Subsonic, 20ct

Description

Acri Ammunition 8.6 Blackout 300gr HPBT – Subsonic

The Acri Ammunition 8.6 Blackout 300 Grain Hornady HPBT (Hollow Point Boat Tail) is a purpose-built subsonic rifle cartridge engineered for maximum energy transfer, deep penetration, and consistent accuracy at short to medium ranges. Designed specifically for the 8.6 Blackout platform, this load excels in suppressed AR-10 and bolt-action rifles, where quiet operation and terminal effectiveness are critical.

Loaded with a 300-grain Hornady HPBT projectile, this round is optimized for subsonic velocities around 1,000 FPS, delivering stable flight characteristics and reliable performance without breaking the sound barrier. The boat-tail design enhances accuracy and ballistic consistency, while the hollow point profile promotes effective energy transfer on target.

From a 12-inch barrel, this load has demonstrated subsonic velocities around 992 FPS, producing muzzle energy typically in the 600–700 ft-lb range, depending on barrel length and platform. These characteristics make it well-suited for suppressed hunting, tactical applications, and shooters seeking heavy-hitting subsonic performance.

Specifications:

• Caliber: 8.6 Blackout

• Bullet Weight: 300 Grain

• Bullet Type: Hornady HPBT (Hollow Point Boat Tail)

• Velocity Class: Subsonic

• Condition: New, factory-loaded ammunition

Ballistic Performance:

• Typical Velocity: ~1,050 FPS

• Tested Velocity: ~1030 FPS (12″ barrel)

• Estimated Muzzle Energy: ~600–700 ft-lbs
  (Actual results may vary by barrel length and firearm configuration.)

Performance Highlights:

• Optimized for suppressed use

• Heavy-for-caliber projectile for strong energy transfer

• Deep, straight-line penetration

• Excellent accuracy at short to medium ranges

• Designed specifically for 8.6 Blackout platforms

Ideal For:

• Suppressed hunting applications

• Tactical and duty use

• AR-10 and bolt-action rifles chambered in 8.6 Blackout

• Shooters seeking quiet, hard-hitting subsonic performance

This 8.6 Blackout 300gr HPBT load reflects Acri Ammunition’s precision loading standards, delivering reliable subsonic performance for shooters who demand effectiveness without excess noise.

⚠️ Use only in firearms chambered for 8.6 Blackout 1:5 twist. FMJs can be used in 1:3 twist only for subsonic. Always verify function and cycling in your specific firearm, especially when using suppressed systems. Follow all local, state, and federal laws regarding ammunition ownership and use.