Burris Eliminator III - Manual (Page 5)

5
3. With the currently selected table displayed you have 30
seconds to click the B1 (Left Arrow) button again to enter the
Table Select mode. The “T” (for Table Select) will be on steady;
the unit (Y or M) is flashing when you enter Table Select mode.
Press the B2 (Up Arrow) to select Y (yards) or the B3 (Down
Arrow) to select M (meters).
When the measurement unit you want is flashing, press and
release the B1 (Left Arrow) button to load your units choice, and
advance to Drop Number selection.
4. The “T” is still on steady, your (Y or M) and a 1 in the first
numeric position is on and steady, previously selected Drop
Number should be flashing. Press the B2 (Up Arrow) button to
increase the number, or the B3 (Down Arrow) to decrease it.
When the Drop Number you want is flashing in the display, press
and release the B1 (Left Arrow) button to load your Drop
Number selection and advance to BC selection.
5. The “T” is still on steady, your (Y or M) and a 1 in the first
numeric position is on and steady, the selected Drop Number is
also on steady. The two digits in the windage area or BC will be
flashing. Your real BC is preceded by a decimal point, but the
decimal is not entered here. Press the B2 (Up Arrow) to increase
the BC number, or the B3 (Down Arrow) to decrease it. When
the BC Number you want is flashing in the display, press and
release the B4 (Right Arrow) button to load your choice of BC
number. The scope will automatically return to shooting mode
with your choice of Tables in operation and stored permanently
(until you select another). The scope will remember your selection
even if it is turned off or the battery gets removed and replaced.
Incidentally, hitting the B4 (Right Arrow) at anytime in the
process will return you to shooting mode.
6. You are now ready to go shooting. For optimum accuracy,
verify point of impact by shooting groups at long range.
Depending on the exact ammo performance, your gun’s barrel
length, the elevation, and any extreme temperatures, you might
need to increase or decrease your Drop Number, sometimes
significantly, for exacting performance. See Verifying your
Drop-BC Table Selection below.
Verifying your Drop-BC Table Selection:
Published velocities can be significantly faster than what you may
experience with your rifle. This can be the result of ammunition
lots, temperature, internal barrel dimensions, and barrel length
difference between your barrel and the ammo manufacturer’s test
barrel. Small velocity changes can have a large effect on trajectory
at long range distances. For optimum calibration and accuracy,
shoot at long distance to verify proper calibration. The ideal range
to verify is at 750 yards because the Drop Number for your
ammunition represents the drop at 750 yards when sighted in at
100 yards.
Often it is difficult to find a suitable place to target shoot at 750
yards, whereas 400, 500 or 600 yards may be easier to locate. Use
the chart (below) to make adjustments to your Drop Number when
verifying calibration at these distances.
You will want to record the altitude at which you sight-in and verify
your Table selection. Record the Table Number also. It is easy to reset
the Table values before your hunt starts in the morning or other
convenient time. You will also want to record the Drop Number and
BC correction per 1000 ft. Use the stick on labels provided with your
scope.
Write your values on the label after they are verified. Then peel off
the label and stick it to the shelf above the battery cap. Note you
will want one decimal place for the drop and three places on the
BC adjustments. Just round to the last decimal place after doing
your arithmetic. Note that - / K ft
↑ translates to minus per
thousand feet up.
3490 Y
47
3
Verifying Trajectory Calibration at Long Range
For each inch bullet For each inch bullet
impact is LOW, impact is HIGH,
Target INCREASE Drop DECREASE Drop
Distance Number by: Number by:
750 1" -1"
600 2" -2"
500 3" -3"
400 6" -6"