The .22 extra long is a .22 in (5.6 mm) American rimfire rifle and handgun cartridge.

Introduced in 1880,[1] the .22 extra long was used in Remington, Ballard, Wesson, Stevens, and later (1916) models of Winchester's M1902 and M1904 single-shot bolt-action rifles,[2] as well as in Smith & Wesson revolvers.

[2] Using the same 40 gr (2.6 g) outside-lubricated bullet later adapted for the much more common .22 long rifle,[2] the extra long was loaded with 6 gr (389 mg) of black powder.

[2] Because it is very dimensionally-similar, however, the shorter .22 short, .22 long, and .22 LR will chamber in weapons designed for it[2] (in the same way a .38 Special cartridge can be loaded into a .357 Magnum revolver, or a .44 Special cartridge can be loaded into a .44 Magnum) revolver.

[citation needed] The .22 extra long ceased to be offered commercially in 1935.