Vickers machine gun

Vickers Medium Machine Gun Vickers MMG Type Medium machine gun Country of Origin UK Specifications Length 1,100 mm (43.31 in.) Barrel 720 mm (28.35 in.) Weight 15 kg (33.07 lb) to 23 kg (50.71 lb) all-up Cartridge .303 British action recoil with gas boost Rate of fire 450-600 RPM Effective range 810 yards (740 m) Max. range 4,500 yards (4,100 m) indirect fire Feed 250-round canvas belt Service History In service 1912–1968 Used by See Users Wars World Wars I & II, Korean War Production History Designed 1912 Manufacturer Vickers Cost/unit originally £175 (see text) Production dates 1912–1968

The Vickers machine gun or Vickers gun is a name primarily used to refer to the water-cooled .303 inch 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 to fire, one to feed the ammunition, and the rest to help carry the weapon, its ammunition and spare parts. It served from before the First World War until after the end of the Second World War.

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 Army's 100th Company of the Machine Gun Corps fired their ten Vickers guns continuously for twelve hours. They fired a million rounds between them, using 100 new barrels, without a single breakdown. "It was this absolute foolproof reliability which endeared the Vickers to every British soldier who ever fired one."

History

The Vickers machine gun was based on the successful Maxim gun of the late 19th century. After purchasing the Maxim company outright in 1896, Vickers took the design of the Maxim gun and improved it, reducing its weight by taking out all unnecessary parts, and adding a muzzle booster.

The British Army formally adopted the Vickers gun as its standard machine gun on 26 November 1912, using it alongside their Maxims. There were still great shortages when the First World War began, and the British Expeditionary Force was still equipped with Maxims when sent to France in 1914. Vickers was, in fact, threatened with prosecution for war profiteering, due to their demanding the Home Office pay the exorbitant (for the day) price of £175 per unit. Under pressure from the government, Vickers reduced the price by over 50% — to £80 per gun. As the war progressed, and numbers increased, it became the British Army's primary machine gun, and served on all fronts during the conflict. When the Lewis Gun was adopted as a light machine gun and issued to infantry units, the Vickers guns were redefined as heavy machine guns, withdrawn from infantry units, and grouped in the hands of the new Machine Gun Corps (when heavier 0.5 inch calibre machine guns appeared, the tripod-mounted, rifle-calibre machine guns like the Vickers became medium machine guns). After the First World War, the Machine Gun Corps (MGC) was disbanded and the Vickers returned to infantry units. Before the Second World War, there were plans to replace the Vickers gun; one of the contenders was the 7.92 mm Besa machine gun (a Czech design), which eventually became the British Army's standard tank-mounted machine gun. However, the Vickers remained in service with the British Army until 30 March 1968. Its last operational use was in the Radfan during the Aden Emergency. Its successor in UK service is the L7 GPMG.

Use in aircraft

The Vickers gun became a standard weapon on British and French military aircraft, especially after 1916. Although heavier than the Lewis, and using a belt feed which proved problematic in the air, it was much easier to synchronize it to allow it to fire through aircraft propellers. The famous Sopwith Camel and the SPAD XIII types used twin synchronised Vickers, as did most British and French fighters between 1918 and the mid 1930s. In the air, the heavy water cooling system was redundant, but because the weapon relied on barrel recoil, the (now empty) water jacket needed to be retained. Slots were cut into the water jacket to aid air cooling.

As the machine gun armament of fighter aircraft moved from the fuselage to the wings in the years before the Second World War, the Vickers, with its fabric belts was generally replaced by the faster-firing Browning Model 1919 using metal-linked cartridges. Several British bombers and attack aircraft of the Second World War mounted the Vickers K machine gun or VGO, a completely different design.

Variants

The larger calibre ([[.50 caliber|half-inch) version of the Vickers was used for armoured fighting vehicles and naval use.

The Gun, Machine, Vickers, .5-inch, Mk. II was used in tanks, the earlier Mark I having been the development model. This entered service in 1933 and was obsolete in 1944. Firing either single shot or automatic it had a pistol type trigger grip rather than the spades of the 0.303.

The Gun, Machine, Vickers, .5-inch, Mk. III was used as an anti-aircraft gun on British ships. This variation was typically four guns mounted on a 360° rotating and +80° to −10° elevating housing. The belts were rolled into a spiral and placed in hoppers beside each gun. The heavy plain bullet weighed 1.3 oz and was good for 1,500 yd (1,400 m) range. Maximum rate of fire for the Mark III was about 700 rpm from a 200 round belt carried in a drum. They were fitted from the 1920s onwards, but in practical terms, proved of little use. During the Second World War, the naval version 0.5 inch version was also mounted on power-operated turrets in smaller watercraft, such as Motor Gun Boats and Motor Torpedo Boats.

The Mark IV and V guns were improvements on the Mark II. Intended for British light tanks, some were used during the war on mounts on trucks by the LRDG in the North Africa Campaign

Foreign service

The Vickers was widely sold commercially and saw service with many nations and their own particular ammunition. It was also modified for each company and served as a base for many other weapons. For example:

• 6.5 mm Italian
• 6.5 mm Arisaka
• 6.5x54R Dutch
• 7x57 Mauser
• 7.5x55 Swiss
• 7.62x51 NATO
• .30-06 Springfield
• 7.62x54R Russian
• 7.65x53 Mauser
• 8 mm Lebel

The Vickers MG remains in service with the Indian, Pakistani, and Nepalese armed forces, albeit as a reserve weapon, intended for emergency use in the event of a major conflict.

Specifications

The weight of the gun itself varied based on the gear attached, but was generally between 25 and 30 pounds (11 and 13 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 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 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.

Rimmed, centrefire Mk 7 .303 inch (7.7 mm) cartridge from World War II.

In British service, the Vickers gun fired the standard .303 inch (7.7 x 56 mm) 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 inch (12.7 mm) calibre version used as an anti-aircraft weapon and various other calibres produced for foreign buyers. Some British tanks of the early Second World War were equipped with the 0.5 inch (12.7 mm) Vickers.

The gun was 3 feet 8 inches (1.1 m) 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. Firing the Mark 8 cartridge, which had a streamlined bullet, it could be used against targets at a range of approximately 4,500 yards (4.1 km).

Use

The gun and its tripod were carried separately and were both heavy. The original design did not anticipate its being carried up jungle-covered mountains on men's backs, but such was the weapon's popularity, that men were generally content to man-pack it to all manner of difficult locations. The tripod would be set up to make a firm base, often dug into the ground a little and perhaps with the feet weighted down with sandbags. The water jacket would be filled with water around the barrel. The firing of the gun would make the barrel heat up, and conducted heat would then boil the water in the jacket, and steam would be carried away down a rubber pipe, to condense in a metal can. The condensed water could then be poured back into the jacket to top it up, but another function of the condenser tin was to hide the emissions of steam, that might give away the gun's position. This cooling system, though heavy, was very effective, and enabled the gun to keep firing far longer than air-cooled rival weapons.

The loader sat to the gunner's right, and fed in belts of cloth, into which had been placed the rounds. The weapon would draw in the belt, push each round out of the belt and into the breech, fire it, and then drop the brass cartridge out of the bottom, to gather in a pile of spent brass underneath the weapon, while the cloth belt would continue through to the left side and wind up on the ground.

One very unusual feature of the Vickers .303 MMG (medium machine gun) was that it was often used to fire indirectly at targets, whereas other weapons of similar type would only be used for direct fire. This plunging fire was used to great effect against road junctions, trench systems, forming up points, and other locations that might be observed by a forward observer, or zeroed in at one time for future attacks, or guessed at by men using maps and experience. Sometimes a location might be zeroed in during the day, and then attacked at night, much to the surprise and confusion of the enemy. New Zealand units were especially fond of this use. A white disc would be set up on a pole near the MMG, and the gunner would aim at a mark on it, knowing that this corresponded to aiming at the distant target. There was a special back-sight with a tall extension on it for this purpose.

A British World War Two Vickers MMG platoon typically had one officer in command of four guns, in two sections of two, each with a crew and a small team of riflemen whose job was to protect the gun, and keep it supplied with ammunition.

Users

• United Kingdom
• Commonwealth of Nations
• India
• Nepal

See also

• Vickers K Machine gun
• Kjellman machine gun
• Skoda M1909 machine gun
• Schwarzlose MG M.07/12
• Vickers .50 machine gun
• Maschinengewehr 08

Resources

Gun Owners' Resource has the following relevant documents available for free download for the Vickers machine gun and/or its variants:

• ELECTRICAL AND MECHANICAL ENGINEERING INSTRUCTIONS (AUST) GUN, MACHINE, VICKERS, .303 IN Issue 1, 7 June, 1963 (51 pg .PDF file, 2.5 MB)
• Idintification List GUN, MACHINE, VICKERS, .303-in., Mk.I and MOUNTING TRIPOD, .303-in., M.G., Mk.IVB Staff of the Master-General of the Ordinance (Australia), May 1945 (38 pg .PDF file, 1.3 MB)
• Guns, Machine, .303-inch, Vickers, Mark I ID list, 1954 (29 pg .PDF file, 890 KB)
• Gun, Machine, Vickers, 303 in, Mark 1 - ON - Mounting, Tripod, 303-in, M.G , Mark 4 B 1974 (69 pg .PDF file, 8.2 MB) [Arabic]
• IDENTIFICATION LIST FOR GUN, MACHINE, VICKERS, .303-IN., MARK 1 ON MOUNTING, TRIPOD, .303-IN., M.G., MARK 4B 1949 SECTION C1 W.O. Code No. 6103, The War Office, February 1950 (41 pg .PDF file, 2.1 MB)
• S.A. IDENTIFICATION LISTS - C.1. AMERICAN - GUNS, MACHINE, VICKERS, .30-IN., U.S.A., Mk.1., AND MOUNTINGS C.O.D. (Technical Branch) WEEDON, September 1941 (20 pg .PDF file, 3.2 MB)

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The Following diagrams and other images are also available for reference:

• 

  Listing of the Vickers' component parts

• 

  British Vickers machine gun crew, western front, World War I.

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  British Vickers gun team in action at the Battle of the Somme. Both are wearing gasmasks

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  British Vickers gunners in action in Holland during Operation Market Garden. All are wearing the Mk III Turtle helmet

Further reading

• Anon, Vickers, Sons and Maxim Limited: Their Works and Manufactures. (Reprinted from 'Engineering') London (1898).

Plates showing the mechanism of the forerunner of the Vickers gun, the Vickers Maxim gun as well as numerous plates of the factories in which they and other arms were made.

External links

• British Vickers Gun tactics during the Great War
• Vickers machine gun
• Spartacus Educational - Vickers machine gun