Type 3 aircraft machine gun

Type 3 (三式, San-Shiki) was a Japanese Navy aircraft machine gun used during World War II. It was based on the American M2 Browning machine gun but used the 13.2x96mm Hotchkiss cartridge.

Specifications

 * Caliber: 13.2x96 mm (.52 Cal in)
 * Ammunition: 13.2 x 96 mm Hotchkiss (49.5 g)
 * Weight: 31 kg (68 lb)
 * Rate of fire: 800 rounds/min
 * Muzzle velocity: 795 m/s (2,610 ft/s)