Three six pointed stars at 9 - 12 - 3 o’clock, 7.9 at 6 o’clock. Tip color is a light pink-violet (doesn’t show well in photo). Jacket is CuNi and the bullet is strongly magnetic on the ogive, not the tip.
It may say “7.9” on the headstamp, but it is a 7.92 (0.323") bullet. There is no case mouth or primer sealant - the dark ring around the primer in the photo is simply shadow.
I’m thinking the source is Slavic, possibly Czech?
Manufacturer and loading?