16
The Drop Scale Factor (DSF) function allows you to
calibrate the BC of your round beyond the supersonic
range of the bullet and maintain accurate solutions out to
transonic and subsonic ranges. DSF calibration does not
impact the supersonic flight path of the bullet.
CALIBRATING DSF:
» Scroll to and select Gun in the Ballistics Menu.
» After accurately inputting all other gun, bullet, and
scope parameters, as well as MV, wind values and
direction of fire, scroll to and select CAL DSF.
» The Cal DSF range is the suggested target distance at
which to calibrate. For best results, find a range where
you can shoot to at least 90% of the recommended
range. Calibrating at less than 90% of the recom-
mended range will lessen accuracy and less than 80%
of the recommended range will not be valid. Calibrat-
ing DSF at distances beyond the recommended Cal
DSF range is ok.
» Adjust Range to match the actual distance to your
target where you are shooting. Accuracy here is
key! Use a quality ranger finder if you are not on a
measured range.
» Apply the suggested elevation hold shown in Drop in
your scope turrets or reticle.
» Take a number of shots to determine the actual bullet
drop. Adjust Drop to match the actual observed bul-
let drop of the bullet at that range. For example, if the
point of impact is 1.5 Mils below the bullseye, adjust
the Drop value to be 1.5 Mils greater.
» A new DSF value will be automatically calculated
to match the actual impact of your round in the
transonic or subsonic range.
» A (+) or (-) in front of the DSF value indicates the
DSF value has been calibrated up or down. A
DSF value of 1 indicates no change to BC in the
transonic or subsonic range.
» Exit to accept the new DSF value.
» Up to 6 DSF values can be created to calibrate
BC through the transonic and subsonic range.
Calibrating DSF one time can create more than
one DSF Cal value.
» All DSF values can be viewed and deleted in
View DSF.
Note! Entering DSF values at a shorter range than a previously
entered DSF value will overwrite the longer range value.
CALIBRATING DROP SCALE FACTOR (AVAILABLE ON ELITE MODELS ONLY)
Shop for Quality products online at:
1.800.561.8187
www.
SCOUTBASECAMP
.ca
