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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 six most common shotgun gauges, in descending order of size, are the 10 gauge, 12 gauge, 16 gauge, 20 gauge, 28 gauge, and .410 bore. [7] By far the most popular is the 12 gauge, [7] particularly in the United States. [8] The 20-gauge shotgun is the next most popular size [citation needed], and is popular for upland game hunting. The next ...
Sample 5-shot group measuring about 7 mm (0.28 in) at 91 m (100 yd), which corresponds to an angular size of about 0.08 mrad (0.26 moa). Same rifle and load, 25 shots at 91 m (100 yd). Note that the group size is about double, measuring about 15 mm (0.59 in) at 91 m (100 yd), which corresponds to an angular size of about 0.15 mrad (0.51 moa ).
The GAU-12 is about the same size as the 20 mm M61. GE has also developed the GAU-13/A, a four-barreled weapon using GAU-8/A components, which has been tested in podded form as the GPU-5/A. The Avenger also forms the basis for the Dutch-developed Goalkeeper CIWS naval air-defense gun. No current or contemplated aircraft other than the A-10 ...
The size of the grouping is described as the diameter of the smallest circle that can be drawn to contain all the shots, [5] typically only measured from the center points of each impact (known as "center-to-center size"). A "flier" is a shot from the same shooting session that is distinctly farther from the general grouping, considered to be ...
With a fast-firing gun using standard rifle ammunition, the US Army and US Air Force showed interest for use of the XM214 on aircraft, helicopters, and armored vehicles. The smaller and lighter Microgun could replace the Minigun on heavily armed gunship aircraft and attack helicopters, freeing up space for ammo, equipment, and even more guns.
The M61 Vulcan is a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon which fires 20 mm × 102 mm (0.787 in × 4.016 in) rounds at an extremely high rate (typically 6,000 rounds per minute).
Inventing Accuracy: A Historical Sociology of Nuclear Missile Guidance. Cambridge, Massachusetts: MIT Press. ISBN 978-0-262-13258-9. Spall, James C.; Maryak, John L. (1992). "A Feasible Bayesian Estimator of Quantiles for Projectile Accuracy from Non-iid Data". Journal of the American Statistical Association. 87 (419): 676– 681.