Hawke Optics Sport HD 4x40 - Manual (Page 5)

PARALLAX ADJUSTMENT MAINTAINING YOUR RIFLESCOPE
Hawke riflescopes feature two types of parallax adjustment.
Objective front Sidewheel
When mounting riflescopes with sidewheel parallax
adjustment it is good practice to check the scope rings do
not squeeze the scope too tightly. An over tightened front
ring may cause binding or backlash of the sidewheel
mechanism. Over tightening the rings can cause damage
to the riflescope tube. This is not covered under warranty.
To give the best accuracy all riflescopes should be
parallax error-free at the required target distance.
Non parallax adjustable riflescopes are set at 100 yds to
be parallax error-free. Crossbow optics are set to be
parallax error-free at 50 yds. Any other distance can cause
a parallax error, this will show itself as a movement of the
reticle on the target. Riflescopes with parallax adjustment
allow the shooter to correct this error for any target distance.
After the zero-in process, we recommend that the parallax
adjustment is checked.
The riflescope has printed pre-set distance markings on
the parallax adjuster, these are only a guide to get you
started. Shooters should test and adjust the parallax
settings by using a measured distance target to set the
optical system to your personal eye condition. It is best to
first bench rest your rifle, set the riflescope magnification to
the maximum setting, then proceed to check the parallax
markings, if required be prepared to re-mark the adjuster
to your own personal settings.
Always set the parallax first, then after setting, adjust the
reticle focus at the eyebell. Parallax is a critical adjustment
when shooting small game or paper targets over long
distances. For hunting large game at closer distances the
parallax error is not so critical.
Each Hawke riflescope is a precision instrument that
deserves a high level of care. During manufacture the
scope is purged with dry nitrogen and sealed to give
a lifetime of reliability. Do not attempt to disassemble
or clean the scope internally.
Keep the protective lens covers in place when the
scope is not in use.
The external lens coatings should occasionally be
wiped clean with the lens cloth provided or an optical
quality lens paper. Remove any external dirt or sand
with a soft brush to avoid scratching the lens coating.
Warning: Unnecessary rubbing or use of a coarse
cloth may cause permanent damage to lens coatings
To clean the external surface of the scope it is
recommended that a silicone impregnated cleaning
cloth is used to protect the scope against corrosion.
Tips for safe storage:
• Always store in a moisture-free environment.
• Never store the scope in places such as the
passenger compartments of vehicles on hot days;
the high temperatures could adversely affect the
lubricants and sealants.
• It is recommended that the battery is removed if
storing for long periods of time.
• Avoid direct sunlight that can enter the objective
or the ocular lens, damage may result from the
concentration (burning effect) of the suns rays.
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