Hornady Black 7.62x39 123 Grain SST

These 7.62x39 cartridges are fitted with Hornady SST (Super Shock Tip) projectiles, which expand reliably regardless of velocity upon impact. Hornady BLACK rounds are intended for versatility, and reliability when used in any platform. Hornady lists: "Direct impingement, gas piston, suppressed, unsuppressed, inertia, bolt, pump, supersonic, subsonic, rifle, mid-length, carbine or pistol" - Their BLACK line will run well out of any conceivable firearms platform, in other words.