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The FN-created cartridge was named "5.56×45mm NATO" with a military designation of SS109 in NATO and M855 in the U.S. [13] These new SS109 ball cartridges required a 228 mm (1-in-9 inch) twist rate while adequately stabilizing the longer L110 tracer projectile required an even faster, 178 mm (1-in-7 inch), twist rate.
Bill Wylde of Greenup, Illinois, compared the two cartridges and changed the chamber of the rifle's barrel to a specification he called the .223 Wylde chamber. The chamber is made with the external dimensions and leade angle found in the military 5.56×45mm NATO cartridge and the 0.2240 in (5.69 mm) freebore diameter found in the civilian SAAMI.
.22 Nosler, a cartridge introduced in 2017 intended for use in AR-15-style rifles.22 PPC, a firearm cartridge used primarily in benchrest shooting.22 Remington Jet, a cartridge designed for the Smith & Wesson Model 53 revolver.22 Savage Hi-Power (5.6×52mmR), a cartridge introduced by Savage in 1912 for use in the Savage Model 99 rifle
It has been adopted by many US allies and the 5.56×45 mm NATO cartridge has become not only the NATO standard but "the standard assault-rifle cartridge in much of the world." [61] It also led to the development of small-caliber high-velocity service rifles by every major army in the world. [62]
The external dimensional specifications of .223 Remington and 5.56×45mm NATO brass cases are nearly identical. The cases tend to have similar case capacity when measured (case capacities have been observed to vary by as much as 2.6 grains (0.17 ml)), although the shoulder profile and neck length are not the same and 5.56×45mm NATO cartridge ...
The M27 link, formally Link, Cartridge, Metallic Belt, 5.56mm, M27 is a metallic disintegrating link issued by the United States armed forces and among NATO and designed for use in belt-fed firearms. [1] It holds 5.56×45mm NATO ammunition.
NATO cartridge may refer to: Small arms 9×19mm NATO (STANAG 4090) 4.6×30mm NATO (STANAG 4820) 5.7×28mm NATO (STANAG 4509) 5.56×45mm NATO (STANAG 4172)
The table below gives a list of firearms that can fire the 5.56×45mm NATO cartridge, first developed and used in the late 1970s for the M16 rifle, which to date, is the most widely produced weapon in this caliber. [1] Not all countries that use weapons chambered in this caliber are in NATO. This table is sortable for every column.