The Slostin was a Soviet-made

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 self-powered Gatling type

Gatling gun

The Gatling gun is one of the best known early rapid-fire weapons and a forerunner of the modern machine gun. It is well known for its use by the Union forces during the American Civil War in the 1860s, which was the first time it was employed in combat...

 machine gun

Machine gun

A machine gun is a fully automatic mounted or portable firearm, usually designed to fire rounds in quick succession from an ammunition belt or large-capacity magazine, typically at a rate of several hundred rounds per minute....

, developed directly after World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

 but never put into production. It was gas-operated, with stationary breech and movable barrels, intended for 7.62x54mmR ammunition, and it was mounted on PM M1910 wheeled tripods. Each barrel has its own gas cylinders, with piston connected to the next barrel. Upon firing one barrel, the next one was forced forward, and thus caused the whole barrel block to rotate through the roller. The Slostin gun was tested and worked well, but was never adopted by the Soviet army, as it was found to be overcomplicated and without any real advantage over the existing PM 1910's, SG-43 Goryunov and RP-46 machine guns.

14.5mm variant

A heavy machine gun variant of the Slostin also existed, for the 14.5x114mm calibre. This variant had somewhat different action and was intended as anti aircraft armament of the IS-7 heavy tank

Iosif Stalin tank

The Iosif Stalin tank , was a heavy tank developed by the Soviet Union during World War II and first used in the Kursk area in September 1943...

, but was also rejected on the grounds of complexity, as it was seen to have no advantages over the existing KPV

KPV heavy machine gun

The KPV-14.5 heavy machine gun is a Soviet designed 14.5x114mm-caliber heavy machine gun, which first entered service as an infantry weapon in 1949. In the 1960s the infantry version was taken out of production because it was too big and heavy...

. Only a handful of prototypes were built.

See also

• Fokker-Leimberger
  Fokker-Leimberger
  The Fokker-Leimberger was an early example of an externally powered machine gun of Imperial German origin that predated the M134 Minigun. It had 12 barrels and could fire at a rate of 7,200 rounds per minute but it suffered from jamming due to the poor quality of German war time production...
  
  
• M134 Minigun
• GAU-19
  GAU-19
  The GECAL 50, officially designated by the United States military as the GAU-19/A, is an electrically driven Gatling gun that fires the .50 BMG cartridge...
  
  
• GShG-7.62 machine gun
  GShG-7.62 machine gun
  The Shipunov GShG-7.62 is a four-barreled rotary machine gun, similar to firearms such as the M134 "Minigun". It is a gas operated, self-powered weapon which is in contrast with most other rotary guns , and has been used only in gun pods and flexible mounts on Kamov Ka-29 prototypes.-See...
  
  
• Phalanx CIWS
  Phalanx CIWS
  The Phalanx CIWS is an anti-ship missile defense system. It is a close-in weapon system and was designed and manufactured by the General Dynamics Corporation, Pomona Division...
  
  
• XM214 Microgun