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22SCAMP1
.22 SCAMP
Country of origin

United States of America

Manufacturers

Colt

Year(s) designed

1960s-1970s

Cartridge type

Centerfire; bottlenecked

Parent cartridge

.221 Remington Fireball

Overall length

37.20mm

Case length

29.22mm

Neck diameter

6.14mm

Shoulder diameter

7.32mm

Rim diameter

7.53mm

Rim thickness

1.25mm

Muzzle velocity

2100 fps

Primer type

Small rifle

The .22 SCAMP is an experimental military cartridge developed by Colt in the 1960s-1970s for use in the prototype SCAMP machine pistol.

DetailsEdit

In early experiments in the development of the SCAMP machine pistol's ammunition, the engineers originally tested the .223 Remington round. However, it proved to be too powerful, thus they experimented with other small-caliber rounds, such as 9×19mm Parabellum, .22 Winchester Magnum, 5mm Remington, .22 Hornet, and .22 Long Rifle.

The design team eventually settled on the .221 Remington Fireball as the basis of the .224 caliber centerfire cartridge, the .22 SCAMP.

The SCAMP round had a 40 grain bullet which traveled at a muzzle velocity of 2100 feet per second. Testing showed that the new round shot flat and accurate out to about 125 meters, far superior to most military pistols of the time.

GalleryEdit

ReferencesEdit

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