.22
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.22 caliber, or 5.6 mm, refers to a common firearms bore diameter of 0.22 inch (5.6 mm) in both rimfire and centerfire cartridges.
Cartridges in this caliber include the very widely used .22 Long Rifle and .223 Remington/5.56×45mm NATO.
.22 inch is also a popular air gun pellet caliber, second only to the ubiquitous .177 caliber.
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The Worker - 1970-01-01 00:00:00
Watertown - 1970-01-01 00:00:00
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