30,000 rounds
light machine gun is the m249 a medium machine gun is the m240 and the heavy machine gun is the browning m2 50. cal machine gun
Butt stock, receiver and barrel
The M240B is an American variant of the Belgian FN-MAG machine gun. It is a belt-fed, gas operated, air cooled machine gun which fires the 7.62x51 NATO cartridge.
The M240 is the US name for the MAG machinegun. Built in Belgium by FN Herstal, it is a an air cooled, belt fed medium machine gun in caliber 7.62 NATO.
Fabrique Nationale USA. The M240 is a variant of the FN MAG, originally manufactured by Fabrique Nationale (Belgium) in the late 1950s, and produced under licence in a number of countries (as well as an unlicenced production in the Peoples Republic of China).
They don't- but are most effective when firing over ground that uniformly slopes away from the gun. This permits "grazing" fire- all bullets travel at the height of a man.
The Metal Storm is the World's fastest machine gun. It fires 1660 bullets in every second up to 1 million rounds per minute without having someone to crank it up. The Metal Storm can be an unmanned machine gun and can open fire automatically because the computer is operating the machine gun. No other machine gun in the World can fire as fast as the metal storm at that kind of firing speed. Metal Storm is one of the fastest machine gun in the World and can fire more bullets much faster than other machine guns. Metal Storm is not an actual machine gun. It is a volley gun. See the Related Question below for a better discussion of what a real machine gun is, and which has the highest rate of fire.
The aircraft mounted machine gun was at first simply a ground machine mounted for a gunner to fire. All sides in WW1 used it. The first successful machine gun fired by a pilot was the Lewis machine gun on a special mounting attached to the top wing, allowing the gun to fire over the propellor.
The "Potato Digger" was not the slowest rate of fire weapon. The French Chauchat machine gun fired 240 rounds per minute
The rate of fire may be anywhere from 200 to 6,000 shots per minute, depending on the gun. There is no one rate of fire for all machine guns.
pull back the trigger and aim!