.17 Remington Fireball

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.17 Remington Fireball
Type	Rifle
Place of origin	United States
Production history
Designer	Remington
Designed	2006
Manufacturer	Remington
Produced	2007
Variants	see .17 Mach IV
Specifications
Parent case	.221 Remington Fireball
Case type	rimless bottlenecked
Bullet diameter	.172 in (4.4 mm)
Neck diameter	.206 in (5.2 mm)
Shoulder diameter	.3673 in (9.33 mm)
Base diameter	.3769 in (9.57 mm)
Case length	1.420 in (36.1 mm)
Primer type	Small Rifle
Ballistic performance
Bullet mass/type Velocity Energy 20 gr (1 g) VMAX 4,037 ft/s (1,230 m/s) 724 ft⋅lbf (982 J) 25 gr (2 g) HP 3,789 ft/s (1,155 m/s) 797 ft⋅lbf (1,081 J) 30 gr (2 g) HP 3,569 ft/s (1,088 m/s) 849 ft⋅lbf (1,151 J)
Source(s): Hodgdon [1]

The .17 Remington Fireball / 4.4x36mm was created in 2007 by Remington Arms Company as a response to the popular wildcat round, the .17 Mach IV. Factory loads drive a 20 grain (1.3 g) bullet around 4,000 ft/s (1,219 m/s). Velocity is close to the .17 Remington but with significantly less powder, and therefore less heat and fouling. Both are important issues to high-volume shooters such as varmint hunters.