Cartridge id help

Does anybody knows any information about this?
Thanks!

Compared with 7.92×57mm

Looks like a 7x57 Mauser by Societe Francais de Munition c1900.

True, but not with a 7.9mm bullet. I think a very accurate projectile diameter measurement is in-order.

A more accurate measurement of the case

7.9x57 patrone 88.
Bullet maybe set back a bit.

Doc AV

Orange is right it is 7+57 SFM I have the same round in good condition
there is also another round like it with the stamp SFM 1896
Sherryl