.25 NAA

.25 NAA

Infobox Firearm Cartridge
name= .25 NAA


caption=
origin= flagcountry|United States
type= Pistol
service=
used_by=
wars=
designer= J.B. Wood
design_date=1999
manufacturer=North American Arms
production_date=2002
number=
variants=
is_SI_specs=
parent= .32 ACP
case type=rimless
bullet=.251
neck=.278
shoulder=
base=.3375
rim_dia=.358
rim_thick=.045
case_length=
length=
rifling=
primer=
is_SI_ballistics=
bw1=35
btype1=XTP
vel1=1050
en1=86
bw2=
btype2=
vel2=
en2=
bw3=
btype3=
vel3=
en3=
bw4=
btype4=
vel4=
en4=
bw5=
btype5=
vel5=
en5=
test_barrel_length=
balsrc= Cartridges of the World [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]

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.

History and Design

It followed the successful introduction of other two other commercial bottleneck handgun cartridges, the .357 SIG in 1994 (which necked a .40 S&W case down to accept .355 cal. bullets); and the .400 Corbon in 1996 (which necked a .45 ACP case down to accept .40 cal. bullets).

Performance

Performance is very similar to the parent .32 ACP.

ee also

* .32 NAA

References

External links

* [http://www.defensereview.com/modules.php?name=News&file=article&sid=508 NAA Guardian Review]
* [http://www.naaminis.com/25NAArel.html .25 NAA Official Press Release]
* [http://www.naaminis.com/sanow32.html Penetration test results] at NAA website


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