.25 NAA
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| .25 NAA | ||
|---|---|---|
| Type | Pistol | |
| Place of origin | USA | |
| Production history | ||
| Designer | J.B. Wood | |
| Designed | 1999 | |
| Manufacturer | North American Arms | |
| Produced | 2002 | |
| Specifications | ||
| Parent case | .32 ACP | |
| Bullet diameter | .251 in (6.4 mm) | |
| Neck diameter | .278 in (7.1 mm) | |
| Base diameter | .3375 in (8.57 mm) | |
| Rim diameter | .358 in (9.1 mm) | |
| Rim thickness | .045 in (1.1 mm) | |
| Ballistic performance | ||
| Bullet weight/type | Velocity | Energy |
| 35 gr (2.3 g) XTP | 1,050 ft/s (320 m/s) | 86 ft·lbf (117 J) |
| Source: Cartridges of the World [1] | ||
The .25 NAA was introduced by North American Arms company for their Guardian model. It is simply the .32 ACP necked down to accept .251" diameter bullets. Performance is very similar to the parent .32 ACP.
[edit] See also
[edit] References
- ^ Cartridges of the World 11th Edition, Book by Frank C. Barnes, Edited by Stan Skinner, Gun Digest Books, 2006, ISBN 0-89689-297-2 p. 288
