The 6.5x50mm Japanese cartridge, also known as the 6.5x50mm Arisaka or 6.5mm Jap, was introduced in 1897 and used primarily by the Imperial Japanese Army and Navy. It served as the standard rifle cartridge for the Japanese military from the late 19th century through World War II.
The cartridge features a 6.5mm (0.264 inch) bullet with a case length of 50mm. The round is known for its relatively light recoil, flat trajectory, and good accuracy, making it well-suited for infantry rifles and light machine guns. Typical bullet weights range from 120 to 140 grains, with the round often achieving muzzle velocities around 2,500 to 2,700 feet per second, depending on the specific load.
Firearms chambered for the 6.5x50mm Japanese cartridge include the Arisaka Type 38 rifle and the Type 96 light machine gun. The round saw extensive use in various conflicts, including the Russo-Japanese War, World War I, and World War II.
Despite being largely obsolete today, the 6.5x50mm Japanese cartridge remains of interest to collectors and historians, and there is still limited commercial production for those who own and shoot vintage firearms.