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Manufacturer:
ArmaLite contacted Remington
Caliber: 0.224 inches (5.7 mm)
Invented:
1963
Lifespan: Still used today
Weight: 62 grain
Energy: 2,700 ft/s (820 m/s)
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Effective
Range:
Max Range:
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| Guns
that use the 5.56 x 45 mm M855: |
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AR15, AK-101 (AK47 type), Ruger Mini-14, SIG 550, SIG 556, South African Vektor R4 and R5, Remington Model 700, Steyr Scout |
| History
of the 5.56 x 45 mm M855: |
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ArmaLite contacted Remington to create a similar cartridge with a longer case body and shorter neck. This became the .222 Remington Special, the .222 Remington Special was renamed the .223 Remington.
With the U.S. military adoption of the ArmaLite AR-15 as the M16 rifle in 1963, the .223 Remington was standardized as the 5.56 × 45 mm. However, the .223 Remington was not introduced as a commercial sporting cartridge until 1964.
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