From Wikipedia, the free encyclopedia
Firearm cartridge
.38 Long rimfire
|
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|
Type
| Rifle and handgun
|
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Place of origin
| United States
|
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|
Used by
| US Army
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|
Variants
| Short, Long, and Extra Long
|
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|
Case type
| Rimmed, straight
|
---|
Bullet diameter
| .374 in (9.5 mm)
|
---|
Neck diameter
| .376 in (9.6 mm)
|
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Shoulder diameter
| .376 in (9.6 mm)
|
---|
Base diameter
| .378 in (9.6 mm)
|
---|
Rim diameter
| .433 in (11.0 mm)
|
---|
Rim thickness
| .051 in (1.3 mm)
|
---|
Case length
| 0.874 in (22.2 mm)
|
---|
Overall length
| 1.382 in (35.1 mm)
|
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Primer type
| Rimfire
|
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Maximum pressure (
CIP
)
| 13,000 psi (90 MPa)
|
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|
|
|
Bullet mass/type
|
Velocity
|
Energy
|
150 gr (10 g) LRN
|
980 ft/s (300 m/s)
|
320 ft?lbf (430 J)
|
|
Test barrel length: Rifle
|
.38 Extra Long rimfire
[1]
|
---|
Type
| Rifle and handgun
|
---|
Place of origin
| United States
|
---|
|
Case type
| Rimmed, straight
|
---|
Bullet diameter
| .374 in (9.5 mm)
|
---|
Neck diameter
| .376 in (9.6 mm)
|
---|
Shoulder diameter
| .376 in (9.6 mm)
|
---|
Base diameter
| .378 in (9.6 mm)
|
---|
Rim diameter
| .433 in (11.0 mm)
|
---|
Rim thickness
| .051 in (1.3 mm)
|
---|
Case length
| 1.48 in (38 mm)
|
---|
Overall length
| 2.025 in (51.4 mm)
|
---|
Primer type
| Rimfire
|
---|
|
|
|
Bullet mass/type
|
Velocity
|
Energy
|
150 gr (10 g) LRN
|
1,250 ft/s (380 m/s)
|
520 ft?lbf (710 J)
|
|
Test barrel length: Rifle
|
The
.38
rimfire
/
9.5x22mmRF
refers to a family of cartridges that have been in service in the
United States
since the mid-19th century. The cartridges are produced in short, long, and extra long variants.
Much like the smaller
.32 rimfire
, the rounds were originally manufactured loaded with black powder. In the early 1900s, manufacturers switched to the "new" smokeless powder.
The .38 rimfire was preferred to the .32 rimfire for hunting and self-defense purposes because of its larger diameter bullet and increased muzzle energy.
History
[
edit
]
The .38 rimfire cartridge was a common round for many
antique
revolvers
and
rifles
from the 1870s to the early 1900s. It was a common self-defense round for a small revolver that was often kept in a vest pocket through to the 1890s. Production in the United States of rimfire calibers larger than .22 ceased upon the country's entry into
World War II
and was never resumed again by any of the major manufacturers. Factory loaded ammunition is no longer available except as collector items.
Uses and variants
[
edit
]
The .38 rimfire cartridge was available in short, long, extra long, and also shotshells. Most of the revolvers and rifle which were produced were chambered for either .38 short rifle , or .38 long rifle. While there were a few different rifles produced for the .38 extra long cartridge and a few
rolling block
,
falling block
, and
bolt-action
rifles had smoothbore barrels which had a slight choke which enabled it to shoot the .38 RF shotshells, which was good for hunting small game at close ranges.
Hopkins & Allen
produced
revolvers
and
rifles
chambered for the .38RF. Rifles of this caliber were produced by Remington (the revolving rifle of 1866), Ballard, Stevens and Frank Wesson, and revolvers by Enterprise, Favorite, Forehand & Wadsworth, and Colt.
[2]
See also
[
edit
]
References
[
edit
]
- ^
Barnes, Frank C. (2012). Richard A. Mann (ed.).
Cartridges of the World
(13th ed.). p. 0.
ISBN
978-1-4402-3059-2
.
- ^
Barnes, Frank C. (2012). Richard A. Mann (ed.).
Cartridges of the World A Complete Illustrated Reference for over 1500 Cartridges
. Gun Digest. p. 500.
ISBN
978-1-4402-3059-2
.