Ho-1 cannon

Ho-1 was a Japanese autocannon used during World War II. It was a Type 97 20 mm anti-tank rifle adopted for use in bomber turrets.

Specifications

• Caliber: 20 mm (0.8 in)
• Ammunition: 20 x 125 (164 g)
• Weight: 33 kg (72 lb)
• Rate of fire: 400 rounds/min
• Muzzle velocity: 820 m/s (2,690 ft/s)