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The M134 Minigun is an American 7.62×51mm NATO six-barrel rotary machine gun with a high rate of fire (2,000 to 6,000 rounds per minute). [2] It features a Gatling-style rotating barrel assembly with an external power source, normally an electric motor.
The XM291 also mounts a larger gun tube and a larger ignition chamber than the existing M256 L/44 main gun. [16] Through the application of electrothermal-chemical technology the XM291 has been able to achieve muzzle energy outputs that equate that to a low-level 140 mm gun, while achieving muzzle velocities greater than those of the larger 140 ...
By absorbing (in compression) the recoil forces, they spread the time of the recoil impulse and counter recoil energy transmitted to the supporting structure when the gun is fired. A-10 30mm GAU-8 strafing run against suspected Taliban machine-gun crew, footage captured by overhead U.S military-operated reconnaissance drone, Afghanistan.
Another efficient and widely used format is the recoil actuated type, which uses the gun's recoil energy for the same purpose. Machine guns, such as the M2 Browning and MG42, are of this second kind. A cam, lever or actuator absorbs part of the energy of the recoil to operate the gun mechanism.
It provides the same firepower in a lighter platform, weighing 48 kilograms (106 lb) and optimized for a firing rate of 1,300 rounds per minute and an average recoil force of 562 lb/ft. [1] Both variants can be configured for an ammunition capacity of 500–1,200 rounds. Both variants are reliable to 40,000 mean rounds between failure.
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In non-recoil-operated firearms, it is generally the entire firearm that recoils. However, in recoil-operated firearms, only a portion of the firearm recoils while inertia holds another portion motionless relative to a mass such as the ground, a ship's gun mount, or a human holding the firearm. The moving and the motionless masses are coupled ...
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