Sometime ago the Soviet7,62x39mm cartridge was difficult to find and shooters had to form it from other cartridges such as 6.5 M/S. Someone got the idea to reform the 7,62x45mm into the 7,62x39mm Soviet cartridge and it was steel cased too. Most of the steel case 7,62x39mm that I have shot in a VZ52/57 was headstamped bxn 53 and bxn 54. Attachment 42362