.22 Remington Automatic
Type Rifle
Place of origin United States
Production history
Produced 1916-28
Bullet diameter .223 in (Bad rounding hereScript error mm)
Neck diameter .245 in (Bad rounding hereScript error mm)
Base diameter .245 in (Bad rounding hereScript error mm)
Rim diameter .290 in (Bad rounding hereScript error mm)
Case length .663 in (Bad rounding hereScript error mm)
Overall length .920 in (Bad rounding hereScript error mm)
Primer type rimfire
Ballistic performance
Bullet weight/type Velocity Energy
45 gr (Bad rounding hereScript error g) 950 ft/s (Bad rounding hereScript error m/s)90 ft·lbf (Bad rounding hereScript error J)
Test barrel length: 22
Source(s): Barnes & Amber 1972

The .22 Remington Automatic (also known as the .22 Remington Auto and occasionally .22 Rem Auto) is a .22 in (5.6mm) American rimfire rifle cartridge.

Introduced for the Remington Model 16 semiautomatic rifle in 1916,[1] the .22 Rem Auto was never used in any other firearm.[2] It will not chamber correctly in other .22 rimfire weapons, nor will other .22 rimfire ammunition, including the very dimensionally-similar .22 Winchester Automatic,[3] interchange with it.[2] This feature was to prevent use of black powder rounds, which were still popular when it first appeared, from being used in the Model 16, resulting in powder residue rapidly clogging the action and rendering the weapon inoperable.[4]

The power of the .22 Remington Auto is comparable to the .22 Long rimfire, and while it fires a heavier bullet,[2] it offers no performance edge on either the .22 Long or the very much more common .22 Long Rifle.[2] It is not as accurate or as effective as the .22 LR, either.[1]

See alsoEdit


  1. 1.0 1.1 Barnes, p.275, ".22 Remington Automatic".
  2. 2.0 2.1 2.2 2.3 Barnes, p.275, ".22 Winchester Automatic".
  3. Barnes, p.275, ".22 Winchester Automatic", & p.283.
  4. Barnes, p.275, ".22 Winchester Automatic" & ".22 Remington Automatic".


  • Barnes, Frank C., ed. by John T. Amber. ".22 Remington Automatic", in Cartridges of the World, pp. 275, 282, & 283. Northfield, IL: DBI Books, 1972. ISBN 0-695-80326-3.
  • ______ & _____. ".22 Winchester Automatic", in Cartridges of the World, pp. 275 & 283. Northfield, IL: DBI Books, 1972. ISBN 0-695-80326-3.

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