Hornady Subsonic 7.62x39 255gr Sub-X - Subsonic Ammo - 20rd

Suppressed 7.62x39 platforms are less common than 300 Blackout hosts but offer a heavier bullet for applications where the extra mass matters. Hornady Subsonic 7.62x39 255gr Sub-X provides a factory subsonic option for shooters who want the reliability of a loaded round rather than the guesswork of a custom handload.

The Sub-X bullet is specifically designed to expand at subsonic impact velocities — the velocity range where standard hollow points typically fail to function. The 255gr Sub-X is specifically designed to expand reliably at subsonic velocities — unlike standard hollow points that require higher velocities to function.

• Caliber: 7.62x39
• Bullet Weight: 255gr
• Bullet Type: Sub-X
• Velocity: Subsonic — below 1,125 fps
• Application: Suppressed AK-pattern and AR-pattern 7.62x39 rifles
• Quantity: Box of 20
• Origin: Made in USA

For suppressed AK-pattern and AR-pattern 7.62x39 rifles. Optimized for AK-47, AKM, and AR-platform 7.62x39 gas systems. Gas-operated semi-automatic platforms may require an adjustable gas block or suppressor-optimized port to cycle reliably on subsonic loads — verify your specific host's requirements before committing to a full training session.

Charge weight is calibrated with enough margin below the subsonic threshold that temperature variation across seasonal use doesn't push a round unexpectedly over the speed of sound. Consistent brass internal volume keeps ignition uniform and velocity predictable from round to round.

Used by suppressed hunters requiring quiet pest control, SBR owners running cans on 7.62x39 hosts, and home defense shooters who want to reduce the pressure wave inside an enclosed structure without giving up terminal reliability.

Hornady Subsonic ammunition is made in Grand Island, Nebraska and held to the same component quality standards as the rest of the Hornady catalog — reliability is not an optional feature in a load where the entire point is consistent behavior.