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  2. 5.8×42mm - Wikipedia

    en.wikipedia.org/wiki/5.8×42mm

    The accuracy of fire at 300 m (328 yd) (R 50) is stated as 75 mm (3.0 in), at 600 m (656 yd) (R 50) is stated as 140 mm (5.5 in) and at 800 m (875 yd) (R 50) is stated as 230 mm (9.1 in). R 50 at a specific range means the closest 50 percent of the shot group will all be within a circle of the mentioned diameter at that range.

  3. Caliber - Wikipedia

    en.wikipedia.org/wiki/Caliber

    Calibers fall into four general categories by size: [citation needed] miniature-bore historically refers to calibers with a diameter of 0.22 inches (5.6 mm) or smaller; small-bore refers to calibers with a diameter of 0.32 inches (8.1 mm) or smaller; medium-bore refers to calibers with a diameter of 0.33 inches (8.4 mm) to 0.39 inches (9.9 mm)

  4. United States Mint coin sizes - Wikipedia

    en.wikipedia.org/wiki/United_States_Mint_coin_sizes

    17.9 mm 2.5 g 1796–1964 $2.50 Gold Quarter Eagle 18 mm 4.2 g 1796–1929 Small Cent 19.05 mm 2.5 g 1943 Small Cent 19.05 mm 3.11 g 1864-1982 Small Cent 19.05 mm 4.67 g 1856-1864 2.5 g 1982–present Three Dollar 20.5 mm 5.01 g 1853–1876 Nickel 21.21 mm 5 g 1866–present Nickel 21.21 mm 5 g 1942–1945 Twenty Cent 22 mm 5 g 1875–1878 $5 ...

  5. Table of handgun and rifle cartridges - Wikipedia

    en.wikipedia.org/wiki/Table_of_handgun_and_rifle...

    Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point.. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name.

  6. Display size - Wikipedia

    en.wikipedia.org/wiki/Display_size

    Comparison of screen sizes by width, height, ... thus the size is the actual size presented to the viewer in all markets. ... 42: 83 32.68 67 26.38 5552 2185.83 107 42 85

  7. .400 Legend - Wikipedia

    en.wikipedia.org/wiki/.400_Legend

    When hunting on private land, virtually all centerfire cartridges with a bullet diameter of at least .243 in (6.2 mm) are legal. On public land, state regulations mandate minimum and maximum case lengths of 1.16 inches (29 mm) and 1.8 inches (46 mm) respectively, plus a minimum bullet diameter of .357 in (9.1 mm), but do not mandate a specific ...

  8. .50 Beowulf - Wikipedia

    en.wikipedia.org/wiki/.50_Beowulf

    Bullet diameter.500 in (12.7 mm) Neck diameter.525 in (13.3 mm) Base diameter.535 in (13.6 mm) Rim diameter.445 in (11.3 mm) Case length: 1.65 in (42 mm) Overall length: 2.125 in (54.0 mm) Primer type: Large pistol magnum: Maximum pressure: 33,000 psi (230 MPa) Ballistic performance

  9. M42 lens mount - Wikipedia

    en.wikipedia.org/wiki/M42_lens_mount

    It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch. (The M42 lens mount should not be confused with the T-mount , which shares the 42 mm throat diameter, but differs by having a 0.75 mm thread pitch.)