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5.56mm NATO shown alongside other cartridges and a United States $1 bill 5.56×45mm NATO cartridges in a STANAG magazine. The 5.56×45mm NATO SS109/M855 cartridge (NATO: SS109; U.S.: M855) with standard 62 gr. lead core bullets with steel penetrator will penetrate about 38 to 51 cm (15 to 20 in) into soft tissue in ideal circumstances.
56 (±2) grain 5.56x45mm NATO M193 at a velocity of 3250 ft/s (990 m/s). 61.8 (±1.5) grain 5.56x45mm NATO M855 at a velocity of 3115 ft/s (950 m/s). This is identical to the ballistic protection provided by NIJ RF1, with the addition of 5.56x45mm M855. This level has no equivalent in obsolete NIJ Standard-0101.06. [10] NIJ RF3.30-06 Springfield
7.62×51mm NATO Ball (Ball M80) at 30 meters with velocity 833 ± 20 m/s 5.56×45mm NATO Ball (SS109) at 30 meters with a velocity of 900 ± 20 m/s 5.56×45mm NATO Ball (M193) at 30 meters with a velocity of 937 ± 20m/s Protection against all three threats must be provided.
Swiss military version of the 5.56×45mm NATO / 223 Remington. For SIG SG 550 and variants. 5.7×28mm: 1990 Belgium 1 [7] R 5.7×28mm 2800 400 [8] 0.286 13 0.224 28mm Bottlenecked high velocity PDW cartridge designed by FN Herstal. Designed in response to NATO requests for a replacement for the 9×19mm cartridge. Frequently used in the FN Five ...
The AK-101 is a Kalashnikov assault rifle model developed in 1994 to use the 5.56×45mm NATO cartridge. It belongs to the export AK-100 (rifle family). The design of this rifle is similar to the AK-74M. It is designed with modern and composite materials, including plastics that reduce weight and improve accuracy.
The AR-10 is slightly larger and heavier than the AR-15. It was originally designed to chamber the military 7.62x51 NATO cartridge (also .308), which has a COAL of 2.800" (71.12mm) 45 Raptor, uses the standard 7.62 NATO case, cut to a length of 1.800" from 2.015", resulting in a straight-wall cartridge, neck is sized to 0.452". The resulting ...
The current NATO 5.56mm SS109 (M855) bullet uses a steel-tipped lead core to improve penetration, the steel tip providing resistance to deformation for armor piercing, and the heavier lead core (25% heavier than the previous bullet, the M193) providing increased sectional density for better penetration in soft targets.
The barrel rifling was revised to a faster 1:7 (178 mm) twist rate to adequately stabilize the new 5.56×45mm NATO SS109/M855 ball and L110/M856 tracer ammunition. The heavier longer SS109/M855 bullet reduced muzzle velocity from 3,260 ft/s (994 m/s), to about 3,110 ft/s (948 m/s) [195]