Yesterday I have bought a few 7.62x39 cartridges in a collection. And one of them looks very strange. In a photo it in the midpoint
This cartridge in the single copy and I don’t want to disassemble it. The cartridge has a headstamp “bxn 62”. I assume that someone has inserted 7.92 bullet into a usual case. Probably it was made by criminals which had no usual cartridges. But the bullet is fixed very thoroughly and qualitatively and I have doubts. It can be the early Czech experiment with subsonic cartridges?