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World war 2 started in 1939 and ended in 1945. In World war 2 the main machine gun was the Browning .50 caliber. This high powered gun fired 450 rounds per minute , and weighted 82 pounds . The length of this gun was 65.1 inches long . Browning .50 caliber was the gun of the century, in world war 2 they put this man killing gun in  all military aircraft.  From 1917 to 1945 the technology in fire arms made a significant increase, the Browning 50 caliber went from 450 shots per minute, to 600 shots per minute . This fire arm was used in Both World wars , the Korean and Vietnam war.

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This is an example present day machine gun that is used in Afghanistan and other modern day wars. This machine gun has been upgraded rapidly through the years from the maxim machine gun the very first one in1884 to MP5, MP60 GMPG and so on. The improvements of the machine gun has gave soldiers the ability to shoot enemies from longer ranges and you can also move the machine gun around easier.

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-The Vietnam war started in November 1, 1955 and ended in April 30, 1975.They were used mostly in the infantry helicopters and on boats to provide extra firepower behind enemy lines when letting down extra troops.
-The "Maxim gun" used the recoil power of the previously fired bullet to reload rather than being hand-powered, enabling a much higher rate of fire than was possible using earlier designs such as the Nordenfelt and Gatling weapons.
-It has also improved by it not using and manual reload and it just takes left over gunpowder after each bullet for a quicker fire rate.

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Rachel Somerville -  World War I: Machine Gun 

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Rachel Somerville -  World War I: Machine Gun 

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-  World War I, the Great War, begins in 1914 and ends in November of 1918.

-  The 1914 machine gun had a flat tripod, and would require a gun crew of 6 to 5 members .

- Maxim's salesmen sold armies with (machine) guns in any  type of calibre, they are usually the recent rifle cartridge. In England, Maxim guns were chambered for the .45-inch Martini-Henry cartridge, but, issued in 1891, they also shot the .303-inch smokeless-powder round in the Lee-Metford rifle.