7.92x57 Polish with flutes

Again I fished it out because of the HASAG name. What possessed someone to beat these flutes into it? There is a powder sound when shaken. I tried to rotate the cartridge to show the flutes, they look not uniform, homemade.

Looks live! Does the bullet/neck crimp look pulled? Maybe someone tried to jam it into the fluted chamber of a 7.62 CETME?

The crimp looks intact and the bullet is well seated.

That’s a shame since it’s a great headstamp. -Ger