IMPACT
®
4000
18 19
ZEROING
To ensure the accuracy of the Impact
®
4000 range and
ballistic solutions it must be zeroed parallel to your
riflescope. This allows you to aim the device with the
center of your reticle at all distances. To zero, follow
the steps below:
1. Before starting, your riflescope must be properly
mounted and zeroed. Your Impact
®
4000 must be
calibrated and then mounted to your weapon.
2. Place the Small Reflective Target Sticker on the
Alignment Target at the same measured offset
that the Impact
®
4000 is mounted from the
center of the riflescope. Find common mounting
offsets marked on the Alignment Target. Your
offset may be different, it is good to measure left/
right and up/down offset to the nearest 1/4" to
verify the sticker placement.
Height Over Scope Center = Rangefinder Offset
REFLECTIVE TAPE
REFLECTIVE TAPE
Note: The Alignment Target grid consists of 1" squares for
easy measurements.
3. Hang the Alignment Target, in a safe direction,
at 50-100 yards using the Large Reflective Tape
Strips. Use one piece of tape on the top of the
target and one on the side of the target.
4. Turn the Visible Laser Switch on the side of the
laser rangefinder to “Enable” utilizing the provided
Torx
®
T-10 Tool.
5. Turn the Visible Laser ON from the Settings Menu.
To do so, press the “Settings” button. Navigate
to and select “Settings”. Navigate to and select
“Visible Laser” and select “ON”.
Note: While the Visible Laser is ON, all ranging and
ballistic functions are disabled.
6. Utilize the Large Reflective Tape Strips to locate
the target with the Visible Laser. The Visible Laser
may not be well aligned to start.
7. Align your riflescope’s crosshair to the center dot
of the Alignment Target, and use the Flat Head
Tool to adjust the Elevation and Windage Turrets
to align the Visible Laser to the Small Reflective
Target Sticker.
8. Your Impact
®
4000 is now zeroed parallel to
your riflescope.
9. Turn the Visible Laser Switch on the side of
the laser rangefinder to “Disable” utilizing the
provided Torx
®
T-10 Tool and turn the Visible
Laser OFF from the Settings Menu following the
instructions from Step 5.
Once the Impact
®
4000 is calibrated, mounted, and
zeroed it must be setup to your specifications to ensure
accurate ballistic solutions for your shooting scenario.
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