The 5mm Remington Rimfire Magnum or 5mm RFM
by Chuck Hawks is a bottlenecked rimfire cartridge introduced by

Remington Arms Company Remington Arms Company, LLC was an American manufacturer of firearms and ammunition, now broken into two companies, each bearing the Remington name. The firearms manufacturer is ''Remington Arms''. The ammunition business is called ''Remington ...

in 1969. Remington chambered it in a pair of bolt-action rifles, the Model 591 and Model 592, but this ammunition never became very popular, and the rifles were discontinued in 1974.When was the 5mm Remington rimfire discontinued?
at Remington.com About 52,000 rifles and 30,000 barrels for the T/C Contender pistol were sold during its brief production run. Remington discontinued the cartridge itself in 1982, leaving owners with no source of

ammunition Ammunition (informally ammo) is the material fired, scattered, dropped, or detonated from any weapon or weapon system. Ammunition is both expendable weapons (e.g., bombs, missiles, grenades, land mines) and the component parts of other we ...

.5mm Centerfire
by Holt Bodinson, Guns Magazine, February 2000 In 2008, the cartridge was reintroduced by

Mexico Mexico (Spanish language, Spanish: México), officially the United Mexican States, is a List of sovereign states, country in the southern portion of North America. It is borders of Mexico, bordered to the north by the United States; to the so ...

Aguila Ammunition Aguila Ammunition is a Mexican manufacturer of firearms cartridges, under Industrias Tecnos of Cuernavaca. Industrias Tecnos was established in 1961, under the name Cartuchos Deportivos de México (It was changed to Tecnos in 1978), as a manufact ...

in collaboration with Centurion Ordnance.The 5mm Remington Rimfire Magnum
by Chuck Hawks

Design

Remington designed a completely new, bottlenecked case that was somewhat similar to the older .22 Winchester Magnum, but stronger to handle the higher pressure of the 5 mm at 33,000 PSI. 5mm Remington Rimfire Magnum case design

From 1982 until 2008, no ammunition manufacturers manufactured rounds for this cartridge. Some firearms manufacturers even created conversion kits to allow the existing 5 mm guns to shoot other more-common cartridges. At the 2008

SHOT Show The SHOT Show , which is an acronym for "Shooting, Hunting and Outdoor Trade Show", is an American annual trade show for the shooting sports, hunting, outdoor recreations and firearm manufacturing industries. The show is owned and sponsored b ...

, Aguila Ammunition announced it would reintroduce the cartridge and begin commercial production of 5mm RFM ammunition. Until 2019, the cartridges were sold in the United States of America under the Centurion brand. In 2019, Aguila Ammunition announced the company now offered two 5mm RFM loads: one with a semi-jacketed hollow point bullet and a second with a full jacketed hollow point bullet. Both loads use a 30 grain projectile and have a muzzle velocity of 2,300 fps.

Performance

The 5 mm RRM offers higher velocity than the .22 WMR and more energy than both the .22 WMR and the later

.17 HMR .17 Hornady Magnum Rimfire, commonly known as the .17 HMR, is a rimfire rifle cartridge developed by Hornady in 2002. It was developed by necking down a .22 Magnum case to take a .17 caliber (4.5 mm) projectile. Commonly loaded with a 1 ...

. It offers improved performance on small-game and for

varmint hunting Varmint hunting or varminting is the practice of hunting vermin — generally small/medium-sized wild mammals or birds — as a means of pest control, rather than as games for food or trophy. The targeted animals are culled because they are c ...

, along with excellent accuracy.

5mm Craig centerfire conversion

When Remington discontinued production of 5mm RFM ammunition, owners of Remington 591 and 592 rifles were left with excellent rifles but no ammunition for them. Mike Craig, in 1994, in Seattle, began work on a centerfire conversion of the 5mm RFM, the 5mm Craig. His company, Certech, also performed conversions of 5 mm rifles from rimfire to centerfire by altering the bolts and installing new firing pins, restoring them to use. Craig has since sold all the rights to the 5mm Craig to Eagle View Arms of Shelton, Washington.

Firearms chambered for 5mm RRM

For a brief time,

Thompson Center Arms Thompson/Center Arms was an American firearms company based in Springfield, Massachusetts. The company was best known for its line of interchangeable-barrel, single-shot pistols and rifles. Thompson/Center also manufactures muzzle-loading rifl ...

offered firearms in 5mm Mag. At the 2008 SHOT show, Taurus International introduced the first handgun chambered for the 5mm Remington Magnum Rimfire.Taurus Introduces New Revolver in 5mm Remington Magnum Rimfire
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References

{{DEFAULTSORT:5 mm Remington Rimfire Magnum Pistol and rifle cartridges Remington Magnum rifle cartridges Rimfire cartridges Weapons and ammunition introduced in 1969

Design

Performance

5mm Craig centerfire conversion

Firearms chambered for 5mm RRM

See also

References