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The .223 Remington (designated 223 Remington by SAAMI [4] and 223 Rem. by the C.I.P. [5]) is a rimless, bottlenecked, centerfire intermediate cartridge.It was developed in 1957 by Remington Arms and Fairchild Industries for the U.S. Continental Army Command of the United States Army as part of a project to create a small-caliber, high-velocity firearm.
.223 Remington, 5.56 NATO: ArmaLite, Colt's Manufacturing Company: A lightweight assault rifle. A smaller version of the AR-10 and adopted by the United States military as the M16 rifle. Later developed by Colt into a popular semi-automatic Colt AR-15. AR-16: 7.62×51mm NATO: ArmaLite: Prototype battle rifle. ArmaLite AR-17: 12 gauge
The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [1]
.223 REM 20 in. A1 1:12 Yes A1 Birdcage 605: Model 605: A1 Triangular S-1-F A1 No No .223 REM 15 in. A1 1:12 No Type 2 Duckbill 605A: Model 605A: A1 Triangular S-1-F A1 Yes No .223 REM 15 in. A1 1:12 No Type 2 Duckbill 605B Model 605B: A1 Triangular S-F-1-3 A1 No No .223 REM 15 in. A1 1:12 No Type 2 Duckbill 606 CAR-15 Heavy Assault Rifle M1 ...
ArmaLite, or Armalite, is an American small arms engineering company, formed in the early 1950s, in Hollywood, California.Many of its products, as conceived by chief designer Eugene Stoner, relied on unique foam-filled fiberglass butt/stock furniture, and a composite barrel using a steel liner inside an aluminum sleeve, including the iconic AR-15/M16 family.
In response, ArmaLite engineers Eugene Stoner, Jim Sullivan, and Bob Fremont used the basic AR-10 design to produce the ArmaLite AR-15 in .223 Remington, which was completed as a firing prototype in 1958. Fairchild-ArmaLite continued its efforts to sell both the AR-10 and AR-15 to various military forces around the world.
In the meantime, the Army would continue testing the AR-15, finding that the intermediate cartridge .223 (5.56 mm) rifle is much easier to shoot than the standard 7.62×51mm NATO M14 rifle. [ 43 ] [ 44 ] In 1961 marksmanship testing, the U.S. Army found that 43% of AR-15 shooters achieved Expert, while only 22% of M14 rifle shooters did so.
.223 Remington, 5.56x45 NATO (Bushmaster M4gery & XM15) 6.8mm Remington SPC, 7.62×39mm (Bushmaster M4gery) United States 1990s Calico Liberty: Calico Light Weapons Systems: 9x19 Parabellum United States 1980s Calico M100: Calico Light Weapons Systems.22 LR United States 1980s Carbon 15: Bushmaster Firearms International: 9×19mm Parabellum.223 ...