Hornady quietly launched an updated lineup of their Sub-X bullets, as well as their Subsonic 7.62x39 loading using said Sub-X bullets.
Subsonic ammunition is a type of firearm cartridge specifically designed to produce a muzzle velocity below the speed of sound, which is approximately 1,125 feet per second (fps) at sea level.
Premium 300 AAC Blackout Ammo For Sale - 190 Grain Sub-X Ammunition in Stock by Hornady Subsonic - 20 Rounds
Gunworks - 30cal .308 190gr Hornady Sub-X 30730
7.62x39mm Gel Test - 7 Loads Put to the Test - Firearms News
I love the Hornady Sub-X projectiles : r/reloading
Hornady's NEW Subsonic 7.62x39 Load And Expanded Sub-X Bullet Lineup -The Firearm Blog
HORNADY 7.62x39 (.3115) 255gr BULLET SUB-X 100/BX - Graf & Sons
Hornady Sub-X 45-70 GOVT 410gr x20
Hornady's NEW Subsonic 7.62x39 Load And Expanded Sub-X Bullet Lineup -The Firearm Blog
7.62x39 Reloading Data - Guns and Ammo
AMAZING 308 Subsonic Loads (and fun too) – Ultimate Reloader
Hornady Subsonic 7.62x39 255 Grain Sub-X 20 Rounds by Hornady
300 Blackout vs 7.62x39: Everything You Need To Know
SHOT 2023] NEW Hornady Sub-X 7.62x39mm 255 Grain Subsonic
Hornady 300 Blackout 190 Gr Sub-X Review: Suppressor Ready