BRITISH SERVICE VICKERS GUNS

Gun, Machine, Vickers, .303-inch, Mk. I:

Cat. No. Introduction Obsolescent Obsolete Remarks
Section C.1
B.D.0600
L. of C. 16217
84/V/852
26th November 1912

  • Cat No. C1/BD 0600, List of changes 22675, GUNS, Machine, Vickers, .303-in., Mk. 1 - With dial sight bracket
  • Cat No. C1/BD 7930, List of changes 22675, GUNS, Machine, Vickers, .303-in., Mk. 1 - without dial sight bracket

    Training variants on the training accessories page.


    Data summary

    Method of FeedFabric belt from right side
    BeltCapacity - 250 rounds.
    Construction - canvas with brass separating strips
    WeightEmpty - 30 lbs.
    With water - 40 lbs. (approx.)
    Length3 ft., 7½ in.
    BarrelLength - 28.4 in.
    Calibre - .303-in.
    Rifling - number of grooves - 5; twist - 1 turn in 10 in.; direction - to the left; depth - .005 in. to .008 in.; width of lands - .0936 in.
    SightsType - aperture and blade.
    Range adjustment - using Plate, Graduated, Tangent Sight, No. 2 Mk. 1 for Mk. 7 ammunition - 100 to 2900 yd.
    Range adjustment - using Plate, Graduated, Tangent Sight, No. 2 Mk. 2 for Mk. 8z ammunition - 100 to 3700 yd.
    Sight base - (radius) - 36 in. (approx.)
    Cyclic rate of fire450 to 550 rounds per minute.
    Method of breech lockingToggle joint.
    System of operationRecoil, gas assisted.
    Change leverNil - full automatic only.
    Type of coolingLiquid cooling
    Capacity of barrel casing7 pints (approx.)
    Number of rounds required to boil water600 (continuous firing)
    Rate of evaporation1.5 pints per 1000 rounds
    AmmunitionCartridges, S.A. Ball, .303 in., Mk. 7, Mk. 7z or Mk. 8z, or Tracer or A.P.

    Before the Great War

    The Vickers first began service as the 'Mk. I' from the 26th November, 1912. This was the service pattern gun that remained largely unchanged for its entire service life. It was, by far, the largest Mark produced and the majority of parts in other Marks came from it.


    The Great War

    At the start of the Great War, the Vickers Mk. I in production varied only slightly from that adopted in 1912. However, it soon began to change. For the first few years, these changes were small and affected component parts and the amount of lightening that took place on that gun - the increased lightening increasing production time and cost. The completely lightened guns have a 'five-arch' top cover and any area where the thickness of the metal was greater than required, it was milled out so that only the minimum would remain. This even went to the extent of boring the centres of pins so they were hollow and saved precious-few ounces. The gun shown was produced in May, 1915, and displays all of the early milling. Also shown is a rear cross-piece that has been milled out. Later production examples show solid areas.

    Photobucket Crosspiece

    As the demand for machine guns increased even more, it was decided that a smooth barrel jacket could be produced quicker that the fluted jackets. Therefore, from late-1917 some Vickers MGs were manufactured with smooth barrel jackets. They are similar in appearance to the Second World War production guns.

    Gun, Machine, Vickers .303-inch, Mk. I


    Between the Wars

    The large numbers of guns produced during the Great War satisfied the appetite for replacements and, with refurbishment, were able to keep the British Army equipped throughout this period.

    However, with the increased mobilisation in the 1930s, it was necessary for the War Office to start placing orders for further refurbishment and the commencement of further production. All were in .303-inch.

    Inter-War War Office Contract Information
    DateItemMakerQuantity and Other Details
    24.04.1935Vickers Mk I overhaul and repairEnfield100
    13.06.1935Vickers Mk IVickers Armstrong200
    13.06.1935Vickers Mk I overhaul and repairEnfield450
    29.10.1935Overhaul Vickers Mk I to "S" or "SM" standardEnfield110
    16.04.1936Vickers Mk I repairEnfield110
    06.07.1936Vickers Mk I repairEnfield500
    29.09.1936Vickers converted from Mk I to Mk VIEnfield8 for Iraq
    16.06.1937Vickers Mk I repairEnfield500
    24.11.1937Conversion of Vickers Mk I to Mk VI LH feedEnfield200
    29.12.1937Vickers Mk I repairEnfield28
    05.05.1938Vickers Mk I repair and Mk VI conversionEnfield500
    08.09.1938Vickers Mk IVickers Armstrong200
    28.03.1939Vickers Mk IVickers Armstrong30
    11.05.1939Vickers Mk I repairEnfield500
    01.08.1939Vickers Mk I repairEnfield200

    Australian production

    It was also during the inter-war period that Australia began to manufacture Vickers MGs at its Small Arms Factory, Lithgow.


    The Second World War

    The ramp-up of Vickers MG repair and production increased with the outbreak of the War. From this time, some orders placed were referred to as 'Ground Pattern' guns, presumably to avoid confusion with Vickers Gas Operated Mk I guns. All were in .303-inch unless otherwise mentioned.

    Second World War War Office Contract Information
    DateItemMakerQuantity and Other Details
    15.12.1939Vickers Mk I Ground PatternVickers Armstrong600 at £118/10/- each
    15.12.1939Vickers Mk I Ground PatternVickers Armstrong320
    18.12.1939Vickers Mk I repairEnfield3,000
    12.02.1940Vickers MG 7.92mmsupplied by Edgar Grimaud750 for Turkey
    16.04.1940Vickers MGsupplied by Edgar Grimaud326
    09.07.1940Vickers Mk I Ground PatternVickers Armstrong49
    14.10.1940Vickers Mk I Ground PatternVickers Armstrong920
    11.05.1941Vickers Mk I Ground Pattern, Class "C"Vickers Armstrong133, differs slightly from service pattern
    11.05.1941Vickers Mk I Ground Pattern Land ServiceVickers Armstrong16
    12.06.1941Vickers MGVickers Armstrong2,000
    26.07.1941Vickers MGVickers Armstrong1,888
    07.08.1941Vickers MGVickers Armstrong500
    10.03.1942Vickers MGVickers Armstrong190
    13.07.1942Vickers Mk I w/Tripods2,900
    04.01.1944Vickers MGVickers Armstrong3,000

    There were no more orders placed after this period. It is assumed that repairs were being carried out by the Royal Electrical and Mechanical Engineers or being scrapped. No more Vickers MGs were produced in the UK. Production did continue to take place in Australia for a short time.


    Post-Second World War

    In 1968, the Vickers Mk. I was declared obsolete and removed from British Armyservice. It was such a momentous occasion that it warranted an article on the front page of The Times on January 09, 1968.

    The Times


    Sources:

  • CIA, 1950
  • Canadian Army Local E.M.E. Instructions - E 500, 1945
  • Skennerton, 1988
  • The Times, 1968
    This page is published by the Vickers MG Collection & Research Association - www.vickersmachinegun.org.uk