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The .17 Mach IV / 4.4x35mm is a wildcat centerfire rifle cartridge, based on the .221 Remington Fireball case, necked down to fire a 0.172 inches (4.4 mm) bullet. The cartridge was introduced in 1962 by Vern O’Brien. [1]
The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [ 1 ]
List of rifle cartridges, by primer type, calibre and name. ... .17 Mach IV.17 Remington.17 Remington Fireball.19-223.19 Badger.19 Calhoon Hornet.20 BR
The .221 Fireball has been used by wildcatters to create a small efficient .17 caliber cartridge. The most common is the .17 Mach IV which is essentially the .221 necked down to the smaller caliber. This cartridge is reported to have a very flat trajectory and to be relatively quiet with low recoil.
Rifle cartridges. Name Bullet Case type Case length Rim Base Shoulder Neck Overall length .17 Hornet ... .17 Mach IV: 4.368 (.172) 35.6 (1.40) 9.6 (.378) 9.6 (.378) 9 ...
A grainy mobile phone photo of one of the world’s most iconic cats prowling in the snow is offering conservationists hope that an endangered species may be making a comeback.
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
A new year means more viral moments of animals being animals. From Florida alligators and Oregon black bears to a Massachusetts great white shark, 2024 proved to be a big year for ferocious animal ...