|
|
Cartridges ...
SSK has chambered well over 200 calibers in the Contender. The most
popular are the JDJ series which exist in almost every caliber. JDJ
cartridges give the highest ballistic performance in each caliber
consistent with safety, long gun life and exceptional accuracy. The most
popular are the 226, 6 mm, 257, 6.5 mm, 270, and 7 mm JDJ which are based
on the very strong 225 Winchester case. The 309, 8 mm, 338 #2, 358, 375
and 416 JDJ are based on the very strong 444 Marlin case. The 6.5 uses 120
grain bullets at 2400 FPS, the 309 uses 165s at 2400 and the 375 uses 220s
at 2250, 270s at 2100 and 300 FMJS at 2000 which gives plenty of
penetration to take elephant (in 1984 19 elephant were taken with the
375). The 257 gets up to 2900 FPS with an 85 grain to make it the most
effective long range varmint caliber for Contenders, and the same load is
excellent for whitetail and antelope.
Whispers
?
:
A wide range of calibers encompass the 'Whisper
?
'
series of cartridges. A "Whisper
?
" cartridge must be capable of
sub-sonic extreme accuracy with very heavy bullets for its caliber; i.e.
240 grains in 30, as well as moderate to high velocity while maintaining
excellent accuracy with light bullets for the caliber; i.e. 125 at 2300
FPS in 30. The 300 Whisper
?
was the first of the series, and,
contrary to what you may have read about it, the fact of the matter is the
cartridge was designed as a multi-purpose cartridge from the beginning.
Its design parameters, in addition to the ballistics quoted above, were
that it must be capable of being used in the AR-15/M-16 family of rifles,
Contenders and bolt action rifles as well as being easily suppressed. I
know that because I invented it. It revolutionized the tactical suppressed
sub-sonic field in controllability in full auto, power and accuracy. It
has been very successful and has gained wide acceptance as a hunting round
for mid-size game, such as deer, and has probably taken a wider variety of
game than any other handgun cartridge in the same time span. Due to its
small case capacity, its recoil is very mild. One Whisper
?
series from 6 mm, 6.5 mm, 7mm, 300 and 338 is based on the 221 fireball
case. Another series is based on the 7 BR case in 338, 375 and 416 caliber
to convert 308 case head size actions. Another used the 460 Weatherby case
for 50 caliber conversions to 300 Win Mag case head size rifles. Others
use rimmed cases, such as the 50-70-750, for use in single shots.
JDJ:
SSK's 6.5 Mini-Dreadnought on the 220 Swift case produces 2900 FPS with a
120 and 2700 FPS with a 140 giving it a 300 yard positive deer killing
range with very little recoil. The '06 JDJ calibers are highly modified
30-06 cases which generally produce higher velocities than their
equivalent belted magnum counterparts in the shorter pistol barrels. We
call them Magnum Beaters. The 280 JDJ does 3000 with a 120 and 2850 with a
140. The 30-06 JDJ does 2700 FPS with a 165 { 3200 from a 24"}.The 338
does 2400 with a 250 and 2600+ with a 200, the 358 does 2600 FPS with a
225 and 2700+ with a 180, the 375 does 2400+ with a 270 and 2650 with a
220. The 416 does about 2300 FPS with a 300 and 2200 with a 400. These
cartridges are maximized for case capacity and have a short neck and 60
degree shoulder. 15" barrel velocities given.
Wildcats:
Creating your own Wildcat is challenging and gives a great
deal of satisfaction to the customer. SSK will be glad to help you make up
your own cartridge; however, we may already have a reamer in stock that is
very close to what you want to create.
Ammunition:
SSK is a Cor-Bon distributor of combat and hunting
ammunition. Cor-Bon makes Whisper
?
ammo. We do sell direct to
individuals in accordance with existing federal and state regulations.
It's true major manufacturers have discontinued various cartridge cases
(at least temporarily); however, SSK has a large supply of brass for all
JDJ and Whisper
?
cartridges. There are enough SSK barrels in
service that use the 225 Winchester case to enable SSK and others to
purchase brass from Winchester in quantity.
Dies:
SSK has dies in stock for all JDJ and Whisper
?
calibers and can
furnish dies for any caliber.
|
|
|
JDJ cartridges based on the
30-06 case. Suitable for
Encores, Ruger 1 and some
bolt action conversions.
|
.50 Peacekeeper:
750 Hornady, 50 BMG,
.50 Peacekeeper with
700 gr. Ball.
|
Whispers
?
: 6mm,
6.5mm, 7mm, 300
and 338 #2.
|
|
|
|
Some of the JDJ cartridges, originally intended for the Contender.
6.5, 309, 8mm,
338#2, 358, 375 and 416.
|
510 Whisper
?
750 Hornady AMAC
and 750 grain PPI . . .
1050 FPS.
Suppressed under
126 DB. MOA accuracy
at 600 yards.
|
50-Alaskan
500-Nitro
50-3 1/4-750
577-Nitro
600 JDJ
|
|
|
|
10" Encore velocity of
the Factory Cor-Bon
is 275/1761, 400/1843
and 440/1702 FPS
|
280 Remington
and the 280 JDJ.
The JDJ in a 15"
Encore does about
what the standard
280 does in a rifle.
|
338 Whisper
?
-
300 gr. Sierra
375 Whisper
?
-
300 gr. Hornady
50 Whisper
?
-
650 gr. APIT
|
|
|
|
|
|
20 Tactical - 33 grain Hornady
at 42-4300 FPS in a 24" AR 15.
6mmPPC (JDJ version) long throated to gain powder space
80 grain bullet at 3100 FPS.
458 SOCOM - 350 grain
Speer at
1800 FPS. Equals heavily loaded
45-70s. Also accurate with
500 grain Hornady's Sub-Sonic.
|
Some of the JDJ Wildcats and a
couple of tame ones. 950 JDJ Bullet,
950 empty case and loaded round,
50 BMG round, 577 Nitro for the
Ruger #1 conversion, 700 JDJ,
empty case and 1100 grain bullet.
|
|