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For automatic weapons such as machine guns, the rate of fire is primarily a mechanical property. A high cyclic firing rate is advantageous for use against targets that are exposed to a machine gun for a limited time span, like aircraft or targets that minimize their exposure time by quickly moving from cover to cover.
In fully automatic firearms, the cyclic rate is tailored to the purpose the firearm is intended to serve. Anti-aircraft machine guns often have extremely high rates of fire to maximize the probability of a hit.
The M240 machine gun, officially the Machine Gun, 7.62 mm, M240, is the U.S. military designation for the FN MAG, [6] a family of belt-fed, gas-operated medium machine guns that chamber the 7.62×51mm NATO cartridge. [1] The M240 has been used by the United States Armed Forces since the late 1970s.
The M2 has varying cyclic rates of fire, depending on the model. The M2HB air-cooled ground gun has a cyclical rate of 450–575 rounds per minute. [29] The early M2 water-cooled AA guns had a cyclical rate of around 450–600 rpm. [30] The AN/M2 aircraft gun has a cyclic rate of 750–850 rpm; this increases to 1,200 rpm for AN/M3 aircraft guns.
As the first war experiences in the beginning of World War II proved that a higher cyclic fire rate generates more dispersion of the bullets, MG 34 based prototype guns like the MG 34S were requested. The MG 34S had a shortened and lightened barrel, a stiffer multi strands recoil spring and a better recoil booster to increase the rate of fire.
The M60 is a gas-operated, air-cooled, belt-fed, automatic machine gun that fires from the open-bolt position and is chambered in 7.62×51mm NATO. It has a cyclic rate of fire of around 500–650 rounds per minute (RPM). Ammunition is usually fed into the weapon from a 100 or 250-round disintegrating, metallic split-link belt.
The machine gun has an automatic-only trigger mechanism and a cross-bolt safety in the form of a button that is operated by the shooting hand (in its "safe" position the bolt release is disabled). The weapon fires from an open bolt. The cyclic rate can be altered by installing different bolts and recoil springs.
Its muzzle velocity is 350 m/s (1,100 ft/s) and its cyclic rate of fire is 1,200 rpm. It weighs slightly over 1.5 kg (3.3 lb). [21] Uzi Pro. The Uzi Pro, an improved variant of the Micro Uzi, was launched in 2010 by Israel Weapon Industries Ltd. (I.W.I.), formerly the magen ("small arms") division of Israel Military Industries. The Uzi Pro is a ...