Dillon Precision Case Preparation Tools - Manual (Page 5)

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TO OPERATE: You will
need a case gage to set the
size/trim die properly. (See
page 10)
For best results you need
to clean and lube your brass
before sizing and trimming.
Install the size/trim die
(without the trim motor) into the
toolhead on your reloading
machine. Screw it down until it
touches the shellplate and then
back it out 1/2 turn. The
size/trim die is adjustable. That
means that if you screw the die
down all the way, without
checking the shoulder length
first, you may push the case
shoulder back further than is
desirable.
Size a case and check it for
shoulder length in a case gage.
Always wipe the case clean of
lube before inserting it into the
case gage. Lube will cause grit
and dust to cling to the inner surface and cause the gage to give false
readings. The base of the sized case should fall between the high and low
steps on the base of the case gage (see page 10 for further information on
reading a case gage). If it does not, reset your die and size a different case.
Repeat this process until the case falls between the high and low steps on
the base of the case gage. Once the correct case length is achieved, tight-
en the size/trim die lock nut.
You should always have a case in the size/trim die before beginning
trim adjustments. You need to do this to avoid screwing the motor assem-
bly down too far causing the carbide cutter to contact the bottom of the
port window of the size/trim die. This will cause the carbide cutter to shat-
ter, possibly causing injury or damage to the unit. So with a case in the die,
thread the trim motor onto the size/trim die until the cutter makes contact
with the case mouth. Then lower the platform and turn the cutter motor
down another 1/4 turn. Lock motor jam nut.
Continued…
Dillon Rapid Trim 1200B Case Trimmer
Case trimmer with vacuum attachment
(A) and size/trim die (B) installed.
Case Trimmer, #22080
Size/trim dies sold separately. (see page 4)
A
B
3
Accessory Manual, May 2007 5/22/07 8:27 AM Page 6