.221 Remington Fireball

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The .221 Remington Fireball was created by Remington Arms Company in 1963 for use in their single-shot bolt-action pistol called the XP-100. This was a special round designed for an experimental pistol, and has the highest velocity of any commercial pistol cartridge. In the early 1960s Remington was working on an experimental bolt-action pistol based on their model 600 action. They wanted a highly accurate pistol that would be well suited for competition.