.22 caliber

22 caliber, or 5.6mm caliber, refers to a common firearms bore diameter of 0.22 inch (5.6 mm).

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.

Rimfire[]

.22-inch caliber rimfire variations include:

In production
Obsolete
Special-use

Centerfire[]

.22-inch caliber centerfire cartridges include:

Metric
.22
.220
.221
.222
.223
.224
.225

See also[]