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The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [ 1 ]
The Colt first model ring lever rifle and Colt second model ring lever rifle are two early caplock revolving rifles that were produced by the Patent Arms Manufacturing Company between 1837 and 1841. The first model, produced between 1837 and 1838, was the first firearm manufactured by Samuel Colt , developed shortly before the advent of the ...
The second number in a bolt pattern is the diameter of this circle. [2] The bolt circle has the same center point as the mounting hub to ensure that the wheel will be concentric with the mounting hub. The bolt circle's measurement is called the bolt circle diameter (BCD), [3] also called the pitch circle diameter (PCD). [4]
Typically, many rifles use thread diameters in the range between 25–27 mm (0.98–1.06 in). [citation needed] Many older rifles from the first half of the 20th century use a thread pitch around 2 mm (12.7 TPI), while many modern rifle use thread pitches around 1.5 mm (16.93 TPI). Fine threaded systems intended for hand tightening typically ...
The 14.5×114mm (.57 calibre) is a heavy machine gun and anti-materiel rifle cartridge used by the Soviet Union, the former Warsaw Pact, modern Russia, and other countries.. It was originally developed for the PTRS and PTRD anti-tank rifles, and was later used as the basis for the KPV heavy machine gun that formed the basis of the ZPU series anti-aircraft guns that is also the main armament of ...
[2] Using the same 40 gr (2.6 g) outside-lubricated bullet later adapted for the much more common .22 long rifle, [2] the extra long was loaded with 6 gr (389 mg) of black powder. [2] Originally, it slightly outperformed the .22 LR, but was "not noted for great accuracy", [2] while later smokeless loads achieved about the same muzzle velocity ...
Introduced in 1950, it was the first commercial rimless.22 (5.56 mm) cartridge made in the United States. As such, it was an entirely new design, without a parent case . [ 2 ] The .222 Remington was a popular target cartridge from its introduction until the mid-1970s and still enjoys a reputation for accuracy.
They were called a 5-in-1 blanks, because, when they were originally introduced, they could be fired in the five different firearms commonly used in Hollywood Westerns, namely .38-40 and .44-40 Winchester lever-action rifles and .38-40 Winchester, .44-40 Winchester, and .45 Colt single-action revolvers. 5-in-1 blanks are also called a 3-in-1 ...