Because it's ballistics limit it's desirability. Its essentially a 300BO, 30-30, 32 special, 300 savage, 30 Remington, etc. and a host of other cartridges nobody wants, and has limited uses. In this day and age, if it's not a supernoslerultramagnumcreedmoor, nobody wants it. I mean if you can't shoot 5 miles with less than 3" drop, why bother?I agree, but over all especially in the states.... the only following is by AK, SKS and a few bolt actions. That my reason for posting it. When compared to a 30.06 that has been used just as long. Its still made for most rifle manufactures. The 7.62x39 not many new guns in that caliber.