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 |