.222 Rimmed
Encyclopedia
The .222 Rimmed is a centrefire rifle
cartridge, originating in Australia
in the 1960s as a cartridge for single shot rifles, particularly the Martini Cadet
action. Performance is similar to the .222 Remington
on which it is based however loads should be reduced as the walls of the brass cases are generally thicker.
Cases and loaded rounds were originally produced by the Super Cartridge Company. Brass is now available from the Bertram Bullet Company or can be made from 5.6x50mmR
RWS
cases.
The .222 Rimmed has also been used as a parent case for wildcats
, similar to ones based on the .222 Remington
, such as rimmed versions of the .17 Mach IV
, the .17-222, and the .20 VarTarg
.
Rifle
A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile , imparting spin around an axis corresponding to the...
cartridge, originating in Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
in the 1960s as a cartridge for single shot rifles, particularly the Martini Cadet
Martini Cadet
The Martini Cadet is a centrefire single shot rifle produced in the United Kingdom by BSA and W.W. Greener for the use of Australian military Cadets. Based on a miniature version of the Martini-Henry it was internally different...
action. Performance is similar to the .222 Remington
.222 Remington
The .222 Remington aka the Triple Deuce/Triple Two/Treble Two is a centerfire rifle cartridge introduced in 1950, and was the first commercial rimless .22 cartridge made in the United States...
on which it is based however loads should be reduced as the walls of the brass cases are generally thicker.
Cases and loaded rounds were originally produced by the Super Cartridge Company. Brass is now available from the Bertram Bullet Company or can be made from 5.6x50mmR
5.6x50mm Magnum
The 5.6×50mm Magnum cartridge was developed in Germany for use as a legal hunting round alongside the 5.6×50mmR. The two cartridges are dimensionally and ballistically identical in all respects, except that the Magnum cartridge is not rimmed....
RWS
RWS
The three-letter abbreviation RWS may stand for one of the following, depending on context:* Remote Weapon System or Remote Weapon Station, a type of small/medium-calibre weapon mounting used on some modern armored military vehicles...
cases.
The .222 Rimmed has also been used as a parent case for wildcats
Wildcat cartridge
A wildcat cartridge, or wildcat, is a custom cartridge for which ammunition and firearms are not mass produced. These cartridges are often created in order to optimize a certain performance characteristic of an existing commercial cartridge.Developing and using wildcat cartridges does not...
, similar to ones based on the .222 Remington
.222 Remington
The .222 Remington aka the Triple Deuce/Triple Two/Treble Two is a centerfire rifle cartridge introduced in 1950, and was the first commercial rimless .22 cartridge made in the United States...
, such as rimmed versions of the .17 Mach IV
.17 Mach IV
The .17 Mach IV is a wildcat centerfire rifle cartridge, based on the .221 Remington Fireball case, necked down to fire a .172 bullet. The cartridge was introduced in 1962 by Vern O’Brien it offered an easy case conversion and good ballistics but could not compete against the .17 Remington.The name...
, the .17-222, and the .20 VarTarg
.20 VarTarg
The .20 VarTarg is a wildcat centerfire rifle cartridge, based on the .221 Remington Fireball case, necked down to fire a .204 bullet. The VarTarg is most popular with varmint hunters because it provides good range and uses relatively little powder, so the rifle barrel doesn't heat up quite as fast...
.