Can anyone identify this for me please? I’m assuming that it was made by Fabrique Nationale d’Armes de Guerre (FN) in 1938 (38) but I’m unsure of the SS. The head appears to have been blackened, as does the case and projectile. However, it may just be staining or worn off, as it isn’t uniform on the case or projectile. The projectile isn’t magnetic.
The projectile dimension is 7.90mm at the neck. Case length is 53.35mm and tapers from 11.90mm at the base to 10.80mm at the shoulder. The neck diameter is 8.70mm. The head is 11.97mm. The overall length of the round is 75.15mm
This picture shows it next to a 7.92 Mauser round.