Mauser Tankgewehr M1918

During the First World War the onset of static, trench warfare saw the rise in the use of armour plate for personal defense, and the development and use of armour-piercing ammunition to counter this.

By June 1917, the German Army faced the Mark IV tank, and found that the standard armour-piercing 7.92 mm K bullet was no longer effective.

The weapon had a pistol grip and bipod, but no method of reducing recoil, such as a soft buttpad or muzzle brake.

Due to the tremendous blunt force of the recoil, it was designed to be shot in a static position, either prone or from inside a trench.

[12] During the Rif War, the Rifian rebels obtained some smuggled Mauser 1918s to counter the Spanish Renault and Schneider tanks.

[15] The armour-piercing hardened steel cored 13.2×92mm (.525-inch) semi-rimmed cartridge, often simply called "13 mm", was originally planned for a new, heavy Maxim MG.18 water-cooled machine gun, the Tank und Flieger (TuF) meaning for use against "tank and aircraft", which was under development and to be fielded in 1919.

Imperial German Army soldiers firing a Mauser 1918 T-Gewehr
Imperial German Army soldiers firing a Mauser 1918 T-Gewehr
Comparison of a standard .303 British rifle cartridge and a 13.2 mm T-Gewehr cartridge