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The first 56 is the diameter of the case at the base .56 inches (14.2 mm), measured just past the rim, and the second 56 is the diameter at the case mouth, also 0.56 in (14 mm). Later versions of the cartridge included the .56-52, .56-50, [ 2 ] and .56-46, which had varying degrees of taper in the cases, to accommodate smaller diameter bullets.
Cartridges were loaded with 45 grains (2.9 g) of black powder, and were also available as .56-52, .56-50, [15] and a wildcat .56-46, a necked down version of the original .56-56. Lugs indicates that the .50 calibre was the standard issue rifle, with a reduced diameter bullet to reduce the recoil and the risk of accidental magazine explosions. [15]
Toggle the table of contents. ... .56-46 Spencer.56-50 Spencer.56-52 Spencer ... 4.5×26mm MKR; 5 mm Remington Rimfire Magnum; 10.4×38mm Swiss Rimfire; 12.17×42mm ...
This article may lack conversion for SI units. Please add them to this article , preferably with {{ convert }} . 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.
I'm far from being an expert... sorry if I said some nonsens or just wasn't helpful... Cheers! Kintaro 05:41, 12 June 2010 (UTC) Spencer rimfire cartridge .56-56 has base diameter of .56" and neck diameter diameter of .56". Spencer rimfire cartridge .56-50 has base diameter of .56" and neck diameter diameter of .50".
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Length; system unit code (other) symbol or abbrev. notes conversion factor/m combinations SI: gigametre: Gm Gm US spelling: gigameter 1.0 Gm (620,000 mi) megametre: Mm Mm US spelling: megameter
For instance the same angle of 0.1 mrad will subtend 10 mm at 100 meters, 20 mm at 200 meters, etc., or similarly 0.39 inches at 100 m, 0.78 inches at 200 m, etc. Subtensions in mrad based optics are particularly useful together with target sizes and shooting distances in metric units. The most common scope adjustment increment in mrad based ...