Volkov-Yartsev VYa-23

The Volkov-Yartsev VYa-23 is a 23 mm autocannon, used on Soviet aircraft during World War II. Wikipedia

Caliber: 23 mm (1 in)

Cartridge: 23x152mmB

Designed: 1940–41

Muzzle velocity: 905 m/s (2,969 ft/s)

Rate of fire: 600–650 rounds/min