The 7.62x51mm NATO is a rifle ammunition first manufactured in the United States in the early 1950s for the Earle Harvey T25 prototype rifle. However, it became well-known world-wide when, in 1952, the Belgian State-run firm Fabrique Nationale of Herstal rechambered the new FN FAL for this cartridge, whose use went globally as many European, Latin American, and African countries began to import and use this gun. Being fired from the FN FAL, M14, and Galil assault rifles, this ammunition was used in many armed conflicts around the world during the Cold War, such as the Six Day War, Vietnam War, Yom Kippur War, Falklands War, and many low intensity armed conflicts between free nations’ armies and communist guerrillas forces.

The 7.62×51 mm NATO cartridge is made up of a spire point, full metal jacket projectile (or bullet), a rimmless brass case, and a primer. The projectile is 19mm long, with the a diameter of 7.8 mm, while the case measures 51mm in length and has a diameter at the base of 11.9 mm. Although it is smaller than the .30–6 Springfield, the 7.62x51mm has a very strong stopping power. Its equivalent is the American .308 Winchester.

762-51-nato

The 7.62x51mm on the left and the 5.56×45 on the right side

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