Short Barrel Soft Point Showdown: Hornady Black HD SBR Review.11th Edition Hornady Handbook of Cartridge Reloading.CX Bullets – Hornady’s NEW Monolithic Copper Alloy Expanding Projectiles.Hornady 30 Super Carry Critical Defense Ammunition.Thank you for reading this post, don't forget to follow and signup for notifications! 308 caliber bullets under the Sub-X line, though they’ve now also listed. For the moment, it appears that the 255-grain 7.62×39 projectiles only come as part of their factory-loaded subsonic cartridge series, while the rest of the Sub-X lineup are available as just the projectiles. The Sub-X bullets utilize the familiar red-nosed expansion tip, but these tips have been enlarged to enhance the bullet’s expansion at much lower velocities. Despite the launching of many 7 PRC rifles and loadings at the end of October, Hornady quietly launched an updated lineup of their Sub-X bullets, as well as their subsonic 7.62×39 loading using said Sub-X bullets.