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A caliber conversion device is a device which can be used to non-permanently alter a firearm to allow it to fire a different cartridge than the one it was originally designed to fire. The different cartridge must be smaller in some dimensions than the original design cartridge, and since smaller cartridges are usually cheaper, the device allows ...
All metal-linked ammunition was reserved for the Army Air Force and Naval Aviation. When the US Army Air Force .30-caliber machine gun was superseded by the .50-caliber machine gun mid-war, all .30-caliber ammunition began to be belted in M1 250-round belts for infantry use or M3 100-round woven belts for use in vehicles and tanks.
This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load (e.g. the highest muzzle energy might not be in the same load as the highest muzzle velocity, since the bullet weights can differ between loads).
An M60 machine gun belt loaded with 7.62×51mm NATO cartridges, aboard a U.S. Navy patrol craft. An ammunition belt is a firearm device used to package and feed cartridges, typically for rapid-firing automatic weapons such as machine guns.
Caseless ammunition is an attempt to reduce the weight and cost of ammunition by dispensing with the case, which is typically precision made of brass or steel, as well as to simplify the operation of repeating guns by eliminating the need to extract and eject the empty case after firing. [2]
As of March 2022, the United States Army has a solicitation ongoing for an M240 machine gun 6.8×51mm conversion kit for the 7.62×51mm NATO-chambered M240B and M240L general-purpose machine guns. [ 25 ] [ 27 ]
Even as production of the two MGMC vehicles was underway, there was work to increase the firepower. Re-working the M33 to take four machine guns produced the M45 mounting. The M45 Quadmount was the principal weapon (along with the 37mm gun) of highly mobile anti-aircraft artillery battalions deployed in the European Theater during World War II ...
[2] [3] The attachment was developed to allow an infantryman to convert "their rifle to a form of submachine gun or automatic rifle" in approximately 15 seconds. [2] [3] Production of the Pedersen device and modified M1903 rifles started in 1918. [3] However, World War I ended before they could be fielded.