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Rounds of ammunition are fed automatically; after firing, the empty shell casing is ejected through an evacuation door on the front of the turret. Cooling is provided by water circulating in layers of steel around the tube of the gun, and by an injection of air and water after every shot. The turret can be used in three modes:
An extractor also performs the function of an ejector in revolvers. When the striking force applied to the ejector rod is hard and fast enough, the extractor will typically eject the empty case(s) from the cylinder. Some break-action shotguns are also designed to eject empty shells completely out of the chamber when the barrel is opened.
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rWNiCo: tungsten (91–93%), nickel (3–5%) and cobalt (2–4%) rWNiFe: tungsten (91–93%), nickel (3–5%) and iron (2–4%) Upon detonation of the explosive, the casing disintegrates into extremely small particles, as opposed to larger pieces of shrapnel which results from the fragmentation of a metal shell casing. The HMTA powder acts like ...
However, the shrapnel shell, named for Major General Henry Shrapnel of the British Royal Artillery, predates the modern high-explosive shell and operates by an entirely different process. [2] A shrapnel shell consists of a shell casing filled with steel or lead balls suspended in a resin matrix, with a small explosive charge at the base of the ...
Casing may refer to an enclosing shell, tube, or surrounding material. It may also refer to: Cartridge (firearms), shell enclosing the explosive propellant in ammunition; Casing (borehole), metal tube used during the drilling of a well; Casing (molding), decorative molding surrounding door or window openings
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An additional hatch at the back of the turret was added for the automatic ejection of the empty shell casings. [10] The weight of the shell was 43 kg (95 lb) and the charge 18 kg (40 lb), a total of 61 kg (134 lb) for the whole round, which made it difficult to handle and gave it a rate of fire of only two rounds per minute when manually loaded.