RCBS M1000 Instruction Manual page 10

Photo 14: Add or remove calibration weights
Photo 15: Place calibration material back into weight holder
Photo 16: Secure pan support to weight holder
hOW TO USE ThE MAIN POISE (1000 GRAIN)
The main poise consists of an accurately adjusted weight which moves parallel to
the axis of the beam and is positioned at weight values by means of a pawl engaging
notches in the beam. The poise run is from 0-1000 grains and the equally-spaced
notches divide this distance into 50 equal parts so that each subdivision is equiva-
lent to 20 grains of weight.
To zero the main poise, move it to the position where the pawl, located on the right
side of the poise, engages the first notch on the right end of the poise travel. The
poise indicator will line up with the "0" graduation (Photo 17).
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