Dillon Precision Case Preparation Tools - Manual (Page 9)

How to use the Case Gage:
The way the case gage works is
this: Once you’ve made a prelimi-
nary adjustment to your sizing die
drop the sized case all the way into
the case gage, Fig 1. Look at the
base of the case.
If the base of the case is below
the high step (see “B” Fig 2) and
above the low step (see “A” Fig 2)
then the sizing die is properly
adjusted. If the base of the case is
above the high step Fig 3, then you
will need to adjust the sizing die
down by turning it clockwise.
If the base at the case is below
low step Fig 4, then the sizing die
is adjusted down too far and needs
to be backed out by turning it
counter-clockwise (Note: this case
should be thrown away).
Once the sizing die is properly
adjusted, drop the properly sized
case back into the case gage and
look at the mouth of the case, Fig
5. If the case mouth is below the
high step (see “C” Fig 5) and above
the low step (see “D” Fig 5) then
the case is the proper length and
will not need to be trimmed. If the
case mouth is above the high step
Fig 6, then the case mouth needs to
be trimmed in order to reduce the
overall length of the case.
If you find that your cases need
to be trimmed, Dillon Precision
offers two types of case trimmers.
7
Dillon Case Gages
Figs 72 & 73 Fig 74 Fig 75 Fig 76 Fig 77
Figs 72 & 73 Fig 74 Fig 75 Fig 76 Fig 77
A B
Fig 3
A B
A
low step
B
high step
For expert assistance or to place an order, call (800) 223-4570
Fig 2
D
high step
C
low step
Fig 1
Fig 4
Fig 5
Fig 6
C D
C D
A B
Accessory Manual, May 2007 5/22/07 8:27 AM Page 10