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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.
DEN Denver Ordnance Plant (1941–1945) – Denver, Colorado: a division of Remington Arms. DM Iowa Army Ammunition Plant (January 1942 to July 1945) – Des Moines, Iowa: a division of US Rubber Co. EC Evansville Ordnance Plant (Chrysler) (June 1942 to April 1944) – Evansville, Indiana: a division of Chrysler -Plymouth.
The 5.56×45mm NATO standard SS109/M855 cartridge was designed for maximum performance when fired from a 508 mm (20.0 in) long barrel, as was the original 5.56 mm M193 cartridge. Experiments with longer length barrels up to 610 mm (24.0 in) resulted in no improvement or a decrease in muzzle velocities for the SS109/M855 cartridge.
The 6×45mm cartridge provides better down range performance than the .223 Remington or the 5.56 NATO cartridges. The cartridge is currently offered by Les Baer in an AR rifle. The cartridge had been offered by Cooper Arms, Kimber and a few other rifle manufacturers in their rifles as a regular factory chambering for a period of time.
The .222 Remington Magnum was created by lengthening the case and shortening the neck of the highly accurate and very popular .222 Remington cartridge, which dominated varmint and benchrest shooting during the 1950s. Case capacity is about 20% greater than that of the .222 Remington, producing moderately higher muzzle velocities.
Remington .223 caliber cartridges. "The PVC views MNC Capital’s fully financed $42 per share all-cash offer as superior to the proposed sale of The Kinetic Group to CSG," GAMCO said in a recent ...
.223 Remington – Original AR-15 cartridge: .223 cartridges may function in a 5.56×45mm rifle, however 5.56×45mm cartridges may produce excessive pressure in a .223 Rem rifle. On the other hand, a .223 Wylde chamber is used on .223 Rem rifle barrels to allow them to safely fire either .223 Remington or 5.56×45mm NATO ammunition. [6]
The Remington Rolling Block was developed from the 1863 pattern .50 calibre split breech carbine issued to the US Cavalry during the American Civil War. This earlier weapon was designed by Joseph Rider and Leonard Geiger to fire the same cartridges as the Spencer carbine. [ 10] The split breech rifle lacked a hammer spur because it self-cocked ...