RCBS M1000 Instruction Manual page 12

Photo 19: Medium poise set at 14.0 grains
hOW TO USE ThE SMALL POISE (1 GRAIN)
The small poise functions the same as the large poise. This poise run is from 0 to
1 grains and the equally spaced notches divide this distance into 10 equal parts
so that each subdivision is equivalent to 1/10th (0.1) grain of weight. To zero the
small poise, move it to the position where the pawl, which is the top edge of
the rectangular slot through the poise, engages the notch directly above the "0"
graduation. The long, vertical edge of the poise is the indicator and will line up with
the"0" graduation. To increase weight values, move the poise and line it up with
the desired graduation. Always make sure the pawl is seated in the notch. For
example, the correct setting for 0.7 grains is shown below (Photo 20).
Photo 20: Small poise set at 0.7 grains
Do not attempt to set the poise at any position, only set in a position where it is
firmly seated in a notch.
hOW TO USE ThE POINTERS (Photos 21-23)
The Pointer contains three separate pointers for easy reading of over and under
loads. The center Pointer is what is used when balancing the scale and establishes
a ZERO Balance. The top and bottom Pointers represent approximately 1.5 grain
above and below target load. The top and bottom pointers allow the user to quickly
weigh loads knowing that if the beam pointer is oscillating between the top and
bottom pointers the load is within +/- 1.5 grains. Having top and bottom pointers
also eliminate the need to move the small poise to check powder charge variations.
NOTE: WHEN SCALE IS ZERO BALANCED IT IS GOOD PRACTICE TO VERIFY THE
EXACT LOAD REQUIRED FOR THE BEAM POINTER TO REACH THE TOP AND
BOTTOM POINTERS.
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