The SN was an aircraft machine gun manufactured in Russia during WW2. It fired the same 7.62x54mmR round used in the Mosin-Nagant rifle and with a rate of 3600RPM.

Overview

The SN was a gas-operated revolver action with the barrel and bolt moving in opposite directions for faster cycling, and is claimed to have achieved more than 3600rpm.

See also

• ShKAS machine gun
  ShKAS machine gun
  The ShKAS is a 7.62 mm machine gun widely used by Soviet aircraft in the 1930s and during World War II...
  
  
• List of firearms
• List of common World War II weapons