8×60mm S
The 8×60mm S is a rimless bottlenecked centerfire cartridge of German origin, dating back to the interbellum period between World War I and World War II. The bore has the same dimensions as the German 7.92×57mm Mauser service cartridge. Wikipedia
Base diameter: 11.98 mm (0.472 in)
Case capacity: 4.16 cm3 (64.2 gr H2O)
Maximum pressure: 405 MPa (58,700 psi)
Parent case: 7.92×57mm Mauser
Place of origin: Weimar Republic