Guns Military
The Vickers machine gun or Vickers gun is a name primarily used to refer to the water-cooled .303 British (7.7 mm) machine gun produced by Vickers Limited, originally for the British Army. The machine gun typically required a six to eight-man team to operate: one fired, one fed the ammunition, the rest helped to carry the weapon, its ammunition, and spare parts. Not to be confused with the Maxim machine gun, it was in service from before the First World War until the 1960s, with air-cooled versions of it on many Allied World War I fighter aircraft.
The weapon had a reputation for great solidity and reliability. Ian V. Hogg, in Weapons & War Machines, describes an action that took place in August 1916, during which the British 100th Company of the Machine Gun Corps fired their ten Vickers guns continuously for twelve hours. Using 100 barrels, they fired a million rounds without a failure. "It was this absolute foolproof reliability which endeared the Vickers to every British soldier who ever fired one".
The weight of the gun itself varied based on the gear attached, but was generally 25 to 30 pounds (11 to 14 kg) with a 40-to-50-pound (18 to 23 kg) tripod. The ammunition boxes for the 250-round ammunition belts weighed 22 pounds (10.0 kg) each. In addition, it required about 7.5 imperial pints (4.3 l) of water in its evaporative cooling system to prevent overheating. The heat of the barrel boiled the water in the jacket surrounding it. The resulting steam was taken off by a flexible tube to a condenser container—this had the dual benefits of avoiding giving away the gun's location, and also enabling re-use of the water, which was very important in arid environments.
In British service, the Vickers gun fired the standard .303 inch cartridges used in the Lee–Enfield rifle, which generally had to be hand-loaded into the cloth ammunition belts. There was also a 0.5 in calibre version used as an anti-aircraft weapon and various other calibres produced for foreign buyers.
The gun was 3 feet 8 inches (112 cm) long and its cyclic rate of fire was between 450 and 600 rounds per minute. In practice, it was expected that 10,000 rounds would be fired per hour, and that the barrel would be changed every hour—a two-minute job for a trained team. The Vickers gun could sustain fire for long durations of time exceeding the recommended 10,000 rounds an hour due to the water-cooled barrel and hourly barrel swaps. One account states a Vickers fired just under 5 million rounds in a week as a test in 1963 at Strensall Barracks and was still operable. The muzzle velocity was 2,440 ft/s (744 m/s) ±40 feet per second (12 m/s) with Mark VII(z) ammunition and 2,525 ft/s (770 m/s) with Mark VIIIz ammunition. The Mark VIIIz cartridge, which had a boat-tailed spitzer 'streamlined' bullet, could be used against targets at a range of approximately 4,500 yd (4,115 m). The bullet jackets were generally made of an alloy of cupro-nickel, and gilding metal. Ammunition for the Vickers used colour-coded annuli. Tracer ammunition was marked with a red annulus; armouring-piercing ammunition a green annulus, and incendiary ammunition was marked with a blue annulus. Lastly, explosive ammunition was marked with an orange annulus before the Second World War and was changed to black. More details
The weight of the gun itself varied based on the gear attached, but was generally 25 to 30 pounds (11 to 14 kg) with a 40-to-50-pound (18 to 23 kg) tripod. The ammunition boxes for the 250-round ammunition belts weighed 22 pounds (10.0 kg) each. In addition, it required about 7.5 imperial pints (4.3 l) of water in its evaporative cooling system to prevent overheating. The heat of the barrel boiled the water in the jacket surrounding it. The resulting steam was taken off by a flexible tube to a condenser container—this had the dual benefits of avoiding giving away the gun's location, and also enabling re-use of the water, which was very important in arid environments.
In British service, the Vickers gun fired the standard .303 inch cartridges used in the Lee–Enfield rifle, which generally had to be hand-loaded into the cloth ammunition belts. There was also a 0.5 in calibre version used as an anti-aircraft weapon and various other calibres produced for foreign buyers.
The gun was 3 feet 8 inches (112 cm) long and its cyclic rate of fire was between 450 and 600 rounds per minute. In practice, it was expected that 10,000 rounds would be fired per hour, and that the barrel would be changed every hour—a two-minute job for a trained team. The Vickers gun could sustain fire for long durations of time exceeding the recommended 10,000 rounds an hour due to the water-cooled barrel and hourly barrel swaps. One account states a Vickers fired just under 5 million rounds in a week as a test in 1963 at Strensall Barracks and was still operable. The muzzle velocity was 2,440 ft/s (744 m/s) ±40 feet per second (12 m/s) with Mark VII(z) ammunition and 2,525 ft/s (770 m/s) with Mark VIIIz ammunition. The Mark VIIIz cartridge, which had a boat-tailed spitzer 'streamlined' bullet, could be used against targets at a range of approximately 4,500 yd (4,115 m). The bullet jackets were generally made of an alloy of cupro-nickel, and gilding metal. Ammunition for the Vickers used colour-coded annuli. Tracer ammunition was marked with a red annulus; armouring-piercing ammunition a green annulus, and incendiary ammunition was marked with a blue annulus. Lastly, explosive ammunition was marked with an orange annulus before the Second World War and was changed to black. More details
