 8×68mm S

The 8×68mm S rebated rim bottlenecked centerfire rifle cartridge was developed in the 1930s by August Schüler of the "August Schüler Waffenfabrik, Suhl, Germany" as a magnum hunting cartridge that would just fit and function in standard-sized Mauser 98 bolt-action rifles.The bore has the same lands and grooves diameters as the German 7.92×57mm Mauser service cartridge (designated as "S-bore").