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222 Remington Magnum other than Cooper Firearms of Montana.

222 Remington Magnum in a couple of target and varmint rifle models for many years, but currently there are no commercial manufacturers in the U.S. In the United States Remington continued to offer the.

In Europe SAKO produces the cartridge and some gun manufacturers offer the chambering. 222 Remington Magnum faded rather quickly. 223 Remington sold exceptionally well and the. As any widely used military cartridge is guaranteed to be a success on the commercial market, the. 222 Remington Magnum, but it was loaded to a slightly higher pressure, so the two have essentially identical ballistics. Case capacity is about 5% smaller than that of the. 223 Remington cartridge has a shorter neck and the shoulder is moved back slightly compared to the. 223 Remington in a slightly derived form was standardized as the 5.56×45mm NATO. military adoption of the M16 assault rifle in 1963, the. 223 Remington to the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI). In the spring of 1962 Remington submitted the specifications of the. To prevent confusion among all of the competing. 224 Springfield was released in 1958 as a commercial sporting cartridge known as the. Springfield was forced to drop out of the CONARC competition, and thus the. At the same time, Springfield Armory's Earle Harvey had Remington create an even longer cartridge case then known as the. Continental Army Command's (CONARC) velocity and penetration requirements, ArmaLite contacted Remington to create a similar cartridge with a longer case body and shorter neck. When it became clear that there was not enough case capacity to meet U.S. firearm designers started their individual Small Caliber/High Velocity (SCHV) rifle experiments using the commercial.

Historyĭuring the late 1950s, ArmaLite and other U.S. 222 Remington Magnum served as the basis for the German-developed 5.6×50mm Magnum sporting cartridge. 222 Remington, producing moderately higher muzzle velocities. Case capacity is about 20% greater than that of the. 222 Remington cartridge, which dominated varmint and benchrest shooting during the 1950s. 222 Remington Magnum was created by lengthening the case and shortening the neck of the highly accurate and very popular. Originally developed for a US military prototype Armalite AR-15 rifle in 1958, the cartridge was not adopted by the military, but was introduced commercially in sporting rifles. 222 Remington Magnum was a short-lived commercially produced cartridge derived from the.