7×20mm Nambu
| 7×20mm Nambu |
|---|
| Type |
Pistol |
|---|
| Place of origin |
 Japan |
|---|
| Service history |
|---|
| In service |
1929-1945 |
|---|
| Used by |
Japan |
|---|
| Wars |
World War II |
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| Production history |
|---|
| Designer |
Kijiro Nambu |
|---|
| Manufacturer |
Koshikawa Arsenal |
|---|
| Specifications |
|---|
| Case type |
Bottleneck rimless |
|---|
| Bullet diameter |
7.08 mm (0.279 in) |
|---|
| Neck diameter |
7.64 mm (0.301 in) |
|---|
| Shoulder diameter |
8.62 mm (0.339 in) |
|---|
| Base diameter |
8.91 mm (0.351 in) |
|---|
| Rim diameter |
9.11 mm (0.359 in) |
|---|
| Rim thickness |
0.98 mm (0.039 in) |
|---|
| Case length |
19.80 mm (0.780 in) |
|---|
| Overall length |
26.80 mm (1.055 in) |
|---|
| Primer type |
Small pistol |
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| Ballistic performance |
|---|
| Bullet weight/type |
Velocity |
Energy |
| 56 gr (4 g) FMJ |
240 m/s (790 ft/s) |
108 J (80 ft·lbf) |
|
|
Test barrel length: 83 mm (3.25 in) |
The 7×20mm Nambu is a rimless, bottleneck handgun cartridge designed in Japan for use in the Type B or "Baby" model Nambu pistol.[1] The cartridge is a scaled-down version of the 8×22mm Nambu used in all other Nambu pistol models, and is ballistically similar to the .32 ACP.[2]
References
- ↑ Miller, David (2007). Fighting Men of World War II, Volume I: Axis Forces—Uniforms, Equipment, and Weapons. Stackpole Books. p. 276. ISBN 0-8117-0277-4.
- ↑ "Nambu World Ammunition & Reloading Page". Retrieved 2009-07-05.