There was once a cartridge called the .222 Remington. It was created in 1950 out of whole cloth (no parent cartridge) by Mike Walker of Remington. Mike’s baby went on to become the darling of official ...
The .221 Remington Fireball was originally introduced in the early 1960s as a handgun cartridge for the futuristic XP-100 handgun. Apparently, the name was derived from the tremendous muzzle flash ...