Unknown cartridges ID

These pictures were posted on the worldwar forum

Reported bullet diam is about 5 mm and headstamp is 74 40

OAL 36 mm
case lenght 21 mm
bullet lenght 29 mm

the bullet is hollow

Ruler scale is in mm

forum.worldwar.it/Forum/viewtopi … 56#p422656

Pivi, it is a Chinese 5.8x21, the head stamp is “74 07” (not 40). On that image the projectile seems to be a jacket from a 5.8x43. The Chinese assemble such things from components which do not pass the QA and put things together as they fit and make key hangers and souvenirs of them.

Thanks EOD,