RCBS X Die Product - Manual (Page 4)

ABOUT THE X DIE
The X-Sizer die is a uniquely designed full length resizing die for
bottleneck rifle cases. This die not only full length resizes the
case, it also limits the growth of the case. This eliminates the
need for repeated trimming after an initial trim is done to stan-
dardize the case. This die is not intended to shorten the length of
the case, rather, as the case grows, the mandrel will reduce the
normal rate of growth. This is the result of the case mouth coming
in contact with the mandrel stop during resizing. Cases repeatedly
sized in the X-Sizer die will grow a few thousandths of an inch ini-
tially, and will then stabilize below the maximum case length.
Using the X-Sizer die eliminates the need to trim after each shot.
X-Sizer dies can be used for full-length resizing with or without
the X feature. Partial neck sizing can be done but only without
the X feature.
CLEANING THE X DIE
You MUST clean new dies before use. These dies contain a
small vent hole through which trapped air escapes during resiz-
ing. Sometimes the vent hole will plug up with factory polishing
material. This material will scratch and dent cases unless it is
removed. To clean, unscrew the mandrel from the die. Insert a
straightened paper clip, needle or similar object into the vent hole.
This will push the material into the die body. The debris can then
be easily removed by cleaning the inside of the die using a patch
saturated with
Outers Solvent. Reassemble the die.
PREPARING YOUR CASES
All cases must be sized
and trimmed to the same
overall length. For the
best results, full-length
resize each case and trim
to .020” under maximum
case length. This is a
“one-time only” prepara-
tion of any and all cases to
be used in the X-Sizer die.
The X-Sizer die can be
used for full-length resizing
by setting it as follows:
• Install the proper shell
holder in the ram
Photo 1