for those of you who don't get it, "7.62" could refer to at least 3 extremely common cartridges: -7.62x39, the AK-47's cartridge -7.62x51, aka .308 (YES I KNOW THERES SOME TECHNICAL DIFFERENCES), used in the US M14 and several other guns -7.62x63, aka the .30-06, the most common hunring rifle round