The Forgotten Fireball
Remington brought the 17 Fireball to life to compete with the popular 17 Mach IV wildcat. The two are very similar, both based on the 221 Fireball, but they do have minor dimensional differences. The 17 Mach IV has a slightly longer and narrower case body along with a longer neck. Both are very close ballistically.
.17 Remington Fireball - Wikipedia
Remington introduced the 17 Fireball to the Sporting Arms and Ammunition Manufacturer’s Institute (SAAMI), making factory ammunition available for those who do not handload.
The 17 Remington Fireball | Varmint Rifles and Cartridges
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The 221 Fireball came first, and as wildcats often do, it was necked down to shoot a 17-caliber projectile. With the 221 Fireball being a success, Remington Arms introduced the 17 Fireball in 2007 in the Model 700 and Model Seven. The Model 700 was offered in two versions: the SPS Varmint (the rifle tested in this article) and the stainless VSSFII with a 26-inch heavy-contour fluted barrel. The Model Seven was offered as a sporter CDL in a wood stock.