.338 Whisper

.338 Whisper

Infobox Firearm Cartridge
name= .338 Whisper


caption=
origin= USA
type= Rifle, subsonic
service=
used_by=
wars=
designer= J.D. Jones
design_date=1990s
manufacturer=SSK Industries
production_date=
number=
variants=
is_SI_specs=
parent=7 mm BR or .221 Fireball
case_type=Rimless, bottleneck
bullet=.338
neck=.360
shoulder=.457
base=.463
rim_dia=.466
rim_thick=.048
case_length=1.47
length=
rifling=
primer=
is_SI_ballistics=
bw1=200
btype1=BT
vel1=1077
en1=515
bw2=250
btype2=BT
vel2=1040
en2=600
bw3=300
btype3=BT
vel3=1050
en3=735
bw4=
btype4=
vel4=
en4=
bw5=
btype5=
vel5=
en5=
test_barrel_length= 12"
balsrc= Cartridges of the World * cite book
last = Barnes
first = Frank C.
editor = Skinner, Stan
title = Cartridges of the World
edition = 11th Edition
origyear = 1965
year = 2006
publisher = Gun Digest Books
location = Iola, WI, USA
pages = 252, 284
isbn = 0-89689-297-2
]
The .338 Whisper is a wildcat cartridgein the Whisper family, a group of cartridges developed in the early 1990s by J.D. Jones of SSK Industries. Unlike the smaller caliber cartridges in the Whisper family, loads for the .338 Whisper are mainly limited to subsonic velocities. [http://www.lasc.us/RangingShot338WhisperRevisited.htm User "Review" on the .338 ammo]

Versions

There are two versions of the .338 Whisper:

#The original .338 Whisper is based on the 7 mm Remington Bench Rest case, necked up (enlarged) to take a .338" bullet. As the 7mm Bench Rest and .308 Winchester cases share the same case head dimensions, conversion to .338 Whisper from a rifle previously chambered in .308 Winchester (or any cartridge based on the .308 Winchester case, such as .243 Winchester, .260 Remington, 7 mm-08 Remington, etc...) is a relatively simple task. http://www.reloadersnest.com/frontpage.asp?CaliberID=389 Information on the two different whisper versions]
#The second version (called .338 Whisper #2 by SSK) is based on the .221 Remington Fireball case, simplifying conversion of firearms chambered in 5.56x45mm or its commercial counterpart, .223 Remington.

ubsonic

A subsonic cartridge is designed to fire its bullets at velocities slower than the speed of sound (1128 ft/s at 70°F) to avoid the sonic crack caused by the bullet breaking the sound barrier which contributes in large part to the overall noise produced when using a firearm. Subsonic loads are often designed to avoid the turbulent transonic zone entirely. This allows the cartridge to be sound suppressed relatively easily. To ensure terminal performance at subsonic velocities, heavy bullets for the caliber (250-300 grains) (16.20-19.44g) are desirable.

Trademark

"Whisper" is a registered trademark of SSK Industries. In order to sidestep this branding (and/or any licensing fees required to use the "Whisper" name legally), other manufacturers tend to use different names for cartridges in the Whisper family. For example, the .300 Whisper (the most popular cartridge of the family) is often called ".300 Fireball" or ".300-221".

See also

* List of rifle cartridges
* 8 mm caliber

References

External links

* [http://www.sskindustries.com/ SSK Industries]


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Whisper Family of Firearm Cartridges — The Whisper Family of firearm cartridges are a group of wildcat cartridges developed in the early 1990s by J.D. Jones of SSK Industries. The Whisper Family was developed as a line of extremely accurate, multi purpose cartridges using relatively… …   Wikipedia

  • .338 Lapua Magnum — Infobox Firearm Cartridge name=.338 Lapua Magnum caption= .338 Lapua Magnum cartridge case origin=flagcountry|Finland type= Rifle service= used by=Multiple official and civil users wars= Afghanistan War, Iraq War designer= Lapua design date=1989… …   Wikipedia

  • .510 Whisper — Infobox Firearm Cartridge name= .510 Whisper caption= origin= USA type= Rifle service= used by= wars= designer= SSK Industries design date= manufacturer= production date= number= variants= is SI specs= parent=.338 Lapua Magnum case type=Rimless,… …   Wikipedia

  • Liste von Handfeuerwaffenmunition — Im Folgenden findet sich eine Liste von Handfeuerwaffenmunition. Bei den unterschiedlichen Handfeuerwaffenarten können gegebenenfalls Überschneidungen vorkommen, da einige Büchsen auch Revolver oder Pistolenmunition, einige Pistolen auch Revolver …   Deutsch Wikipedia

  • Liste Handfeuerwaffenmunition — Die Liste Handfeuerwaffenmunition zeigt die Patronen, welche für Handfeuerwaffen existieren. Bei den unterschiedlichen Waffenarten können Überschneidungen vorkommen, da einige Büchsen auch Revolver oder Pistolenmunition, einige Pistolen auch… …   Deutsch Wikipedia

  • List of rifle cartridges — List of rifle cartridges, by category, and then by name.Rimfire*.17 Hornady Mach 2 (.17HM2) *.17 Hornady Magnum Rimfire(.17HMR) *.22 Long *.22 Long Rifle *.22 Short *.22 WMR (.22 Magnum) *.22 WRF *5mm Remington MagCommon Centerfire Inches*.17… …   Wikipedia

  • Liste des munitions d'armes d'épaule — La liste des munitions d armes d épaule qui suit est une liste de munitions utilisée par des armes d épaule, telles que la carabine, le fusil de chasse, le fusil de combat (à pompe ou semi automatique), le fusil de précision, le pistolet… …   Wikipédia en Français

  • Список круизных судов — Настоящий список круизных судов даёт обзор по возможности всех круизных судов, независимо от того, находятся они ещё в эксплуатации или нет, построены для круизов, или для других целей. Суда в списках расположены в алфавитном порядке. При… …   Википедия

  • Список патронов для нарезного оружия — включает наиболее известные патроны для ручного нарезного оружия (в том числе пистолетов), существующие в настоящее время или существовавшие до недавнего времени. Сюда включены как военные, так и охотничьи патроны. В списке присутствуют также… …   Википедия

  • Deem City, Florida —   City   Coordinates …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”