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Up to date as of February 08, 2010
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A 7.62x51mm from The Art of Halo 3.

7.62x51mm NATO is a round used by the UNSC in their MA5 Series of assault rifles. It was originally developed by the NATO organization in the 20th Century. It is used due to its reliability and heavy power.

As it is used with the MA5 rifles, which are one of the most common armaments in the Marine Corps, it is probably the most commonly fired and used round in the UNSC ground forces. It can be regularly found in packs littered around battlefields.

The round is effective against infantry, especially against unarmored or unshielded opponents. Energy shields drastically reduce the effectiveness of this round, as it does not have enough kinetic energy to significantly drain the shields. The round is also largely ineffective against vehicles, as it is not significantly armor-piercing. Massed fire from a squad of Marines, however, is enough to drain shields and destroy or disable most vehicles short of tanks due to the sheer number of rounds fired. Thus, this is primarily an infantryman's round for use against other infantry.

History

7.62x51mm rounds, with a ruler and AA battery for scale.
There is more information available on this subject at 7.62x51mm NATO on the English-language Wikipedia.

The 7.62x51mm NATO was originally developed by NATO, an organization of national governments, in the middle of the 20th century. It was developed to be reliable when used in fully automatic weapons, to have a large punch, and to standardize round size between governments. It replaced a variety of smaller ammunition and largely achieved the goals of development. It is a full-power rifle round in the 20th century, and is fairly common in machine guns and sniper rifles, but not in lightweight assault rifles like the MA5 series because of intense recoil. Its ineffectiveness in individual infantry weapons led to the adoption of the 5.56x45mm NATO round, due to better controllability and the ability to fit it into small, lightweight assault weapons. It is not known why the 5.56x45mm NATO round disappears in the Halo universe, but it could be possible that weapons technology advanced so much as to fit enough recoil control systems on a firearm to allow this powerful round be used as an infantry rifle round (the same could apply to the M6 series).

Trivia

  • This round was developed by the modern day, real life organization NATO, which stands for North Atlantic Treaty Organization.
  • In Halo: Combat Evolved, this round is labeled "M118 7.62x51mm FMJ-AP."[1] This means that the rounds are armor-piercing and have a solid outer coat of metal.
  • In reality, this round is used in the SCAR-H, G3 and M14 battle rifles, as well as numerous GPMGs and sniper rifles.

Sources

  1. Image of the M118 7.62x51mm FMJ-AP

This article uses material from the "7.62x51mm NATO" article on the Halo wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.







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