As any good reloading manual will tell you, the first successful (commercially at least) attempt to neck the .221 Fireball case down to .17 caliber was the .17 Mach IV. This cartridge was introduced ...
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 ...
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