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  2. List of infantry mortars - Wikipedia

    en.wikipedia.org/wiki/List_of_infantry_mortars

    This list catalogues mortars which are issued to infantry units to provide close range, rapid response, indirect fire capability of an infantry unit in tactical combat. [1] In this sense the mortar has been called "infantryman's artillery", and represents a flexible logistic solution [clarification needed] to the problem of satisfying unexpected need for delivery of firepower, particularly for ...

  3. List of rifle cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_rifle_cartridges

    2.1 Inches. 2.1.1 Smaller than .30 caliber. ... 1.17 Hornady Mach 2, ... 7×61mm Sharpe & Hart; 7mm Shooting Times Westerner;

  4. 120 film - Wikipedia

    en.wikipedia.org/wiki/120_film

    Frame number markings for three standard image formats (6×4.5, 6×6, and 6×9 [4:3, 1:1, and 2:3 aspect ratios]; see below) are printed on the backing paper. The 220 format was introduced in 1965 and is the same width as 120 film, but with about double the length of film and thus twice the number of possible exposures per roll.

  5. Drill bit sizes - Wikipedia

    en.wikipedia.org/wiki/Drill_bit_sizes

    For Morse taper-shank drill bits, the standard continues in 1/64 inch increments up to 1¾ inch, then 1/32 inch increments up to 2¼ inch, 1/16 inch increments up to 3 inches, 1/8 inch increments up to 3¼ inches, and a single 1/4 inch increment to 3½ inches. One aspect of this method of sizing is that the size increment between drill bits ...

  6. M2 mortar - Wikipedia

    en.wikipedia.org/wiki/M2_mortar

    M49A2 high explosive (HE) with point detonating fuze M52B1 [Total weight: 2.73 lb (1.24 kg), filler weight: 0.34 lb (0.15 kg) of TNT]: [10] An explosive shell used against infantry and other light area targets. It has a minimum range of 200 yards (180 m) when fired without a boosting charge at a 70° angle and a maximum range of 2,017 yards ...

  7. List of heavy mortars - Wikipedia

    en.wikipedia.org/wiki/List_of_heavy_mortars

    Ordnance ML 4.2 inch Mortar United Kingdom: World War II, Korea 107: 4.2-inch mortars M2 and M30 United States: World War II, Korea, Vietnam 140: 14 cm Minenwerfer M 15 Austria-Hungary: World War I 148: Coehorn mortar M. 1841 United States: 1841 150: Mortier de 150 mm T Mle 1916 Batignolles France: World War I 150: Mortier de 150 mm T Mle 1917 ...

  8. List of thread standards - Wikipedia

    en.wikipedia.org/wiki/List_of_thread_standards

    ASME B1.20.1-2013: Pipe Threads, General Purpose (Inch) Pipe Thread Form ANSI B1.20.3-1976 (R2013) Dryseal Pipe Threads (Inch) Pipe Thread Form ASME B1.20.7-1991 (R2013) Hose Coupling Screw Threads - Inch: Pipe Thread Form ASME B1.21M-1997 (R2013) Metric Screw Threads - MJ Profile: V Thread Form BS 84: Tables of BS Whitworth, BS Fine and BS ...

  9. M224 mortar - Wikipedia

    en.wikipedia.org/wiki/M224_mortar

    M8 baseplate for use in handheld mode: 3.6 lb (1.6 kg) M64A1 Sight Unit (The M67 Sight Unit is now widely used for the system): 2.5 lb (1.1 kg) The mount consists of a bipod and a base plate, which is provided with screw-type elevating and traversing mechanisms to elevate/traverse the mortar.