The .22 Jet Improved (AKA: .22 Jet Ackley Improved) is a Center Fire cartridge with a Bullet Diameter of 0.224 in” (5.69mm) that is primarily used in Rifles. The .22 Jet Improved originated in (UNKNOWN ORIGIN) in (UNKNOWN DATE). The .22 Jet Improved also has a case length of 1.265 in” (32.13mm) and an overall length of 1.74 in” (44.2mm).
Additional Cartridge Designations: Wildcat Cartridge.
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