Hornady Subsonic 7.62×39 255gr Sub-X Rifle Ammunition

Hornady Subsonic 7.62×39 ammunition (part no. 80787) is built around the heavy 255 grain Sub-X bullet, designed for accuracy and performance below the speed of sound. Hornady more than doubled the typical 7.62×39 bullet weight to keep this round subsonic while still delivering reliable expansion, a combination that makes it a favorite for shooters running suppressed rifles who want a quiet, still-effective round. The Sub-X bullet uses a lead core inside a gilding metal jacket, with long internal grooves and a flat profile that work together with a patented Flex Tip insert in the hollow point cavity to help it expand reliably even at these reduced, subsonic velocities where many conventional hollow points fail to open up.

Key Specifications

• Chambered in 7.62x39mm, the classic AK-platform and SKS rifle cartridge.
• Bullet weight is a heavy 255 grains, roughly double a standard 7.62×39 bullet weight.
• Bullet is Hornady’s Sub-X design, purpose-built for reliable expansion at subsonic velocities.
• Part of Hornady’s Subsonic product line, engineered to stay below the speed of sound.
• Cases are brass, giving consistent ignition and easy reloading for handloaders.
• Packed 20 rounds per box, a standard rifle-ammo box count.
• Runs about $1.64 per round, reflecting the specialized subsonic bullet construction.
• Built with a lead core inside a gilding metal jacket with long internal grooves.
• Uses a patented Flex Tip insert in the hollow point cavity to trigger expansion at low velocity.
• The quiet, subsonic profile makes it a common pairing for suppressed rifles.

Frequently Asked Questions

Why is the bullet so much heavier than standard 7.62×39? The extra weight is what keeps the round subsonic, since a lighter bullet at normal 7.62×39 velocities would break the sound barrier and lose the quieter report.

Does a subsonic bullet still expand on impact? Yes. The Sub-X bullet’s Flex Tip insert and grooved jacket are engineered specifically to trigger reliable expansion even at these reduced, subsonic velocities.

Is this ammunition meant for suppressed rifles? It is commonly chosen for suppressed 7.62×39 rifles because the subsonic velocity keeps the report quiet, though it will function in any rifle chambered for the cartridge.

Buy the Hornady Subsonic 7.62×39 255gr Sub-X Rifle Ammunition

Get a quiet, still-effective subsonic load for your 7.62×39 rifle. Order from our Lubbock, Texas gun shop and it ships fast to your door.