Enter Remington. Early in this century, Remington decided to introduce a new version of the .17 Fireball, similar in many regards to the Mach IV but standardized and optimized for mass production.

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 ...

center-fire cartridges; however, the .221 Rem. Fireball remains just outside that acre’s gate because informed handloaders look at it from a different perspective than those who see it as merely ...

They named the new cartridge the .221 Remington Fireball, acknowledging with some irony the fireball that exited the barrel. When Remington was purchased by DuPont during The Depression ...