Now anyone with a standard reloading press can benefit from advanced benchrest techniques.
The amount of resizing provided by conventional
reloading dies has always been dictated by the manufacturing tolerances
(SAAMI specifications) of the brass cartridge case itself. Reloading
die manufacturers have been forced to design the neck diameter of their
dies small enough to accommodate the thinnest possible brass.
This may be as much as .008" - .010" smaller than the maximum cartridge dimensions typically shown in most reloading manuals.
Since
the majority of cases that the reloader is likely to encounter in the
field are thicker than the minimum specifications that the dies were
designed for, case necks are often resized excessively.
It can
be easily demonstrated that excessive resizing of the cartridge case
quickly leads to stress distortion and concentricity problems. The new
Type S - Bushing Style Dies offer a simple solution to this age old
problem
