 At the same time, Springfield Armory's Earle Harvey had Remington create an even longer cartridge case then known as the .224 Springfield.Springfield was forced to drop out of the CONARC competition, and thus the .224 Springfield was released in 1958 as a commercial sporting cartridge known as the .222 Remington Magnum.To prevent confusion among all of the competing .222 cartridge designations, the .222 Special was renamed the .223 Remington in 1959.