.
t
.
.375-06 JDJ not .375 JDJ
,
.
.
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$ 7.50 per Cartridge                         
.
,
Left is 375 JDJ
Right is 375
Whelen
375
JDJ
30-06
375
JDJ
The 338-06 JDJ was developed from the 30-06 or 35 Whelen by necking it up to .338" caliber,
with a
60 degree shoulder angle, for a large projectile and great powder capacity.
The 338-06JDJ was developed by Mr. J.D. Jones of SSK Industries for the Thompson/Center
Contender single shot pistol or rifle with a special 15" SSK barrel.
These cartridges were produced by Quality Cartridge Company, so they are considered a
proprietary cartridge not a wildcat cartridge, unless you make your own by fire-forming or have
very expensive reloading equipment. Presently very hard to get.
200 Grain Soft Point Projectile See 338-06 JDJ vs 30-06 Springfield in Pictures at left
,
Although the 375
JDJ &
375 Whelen  
are both made
from the 30-06
or
35 Whelen cases,
the 375-06 JDJ has
a very short neck
length due to the
60%  angle which
helps to increase
case capacity to 77
grains (water) vs.
73 grains (water)
capacity the 375
Whelen Wildca
t
holds, which makes
the 375 JDJ
ballistics more then
the 375 Whelen
375
JDJ
375
Whelen
Out of Stock