Hawke Optics Sidewinder 30 Tactical SF 8.5-25x42 - Manual (Page 4)

The Sidewinder 30 is fitted with 1/4 MOA
push/pulllockingturrets.
STEP 3 - Zeroing the riflescope
WARNING: ALL SHOOTING SHOULD BE CARRIED OUT AT
AN APPROVED RANGE OR OTHER SAFE AREA.
EYE AND EAR PROTECTION IS RECOMMENDED
DURING THE PROCEDURE.
Formoreaccuraterangefindingandmoresensitiveoperation,thesuppliedtacticalbigwheelcan
beused.ThescaleontheBigwheelisspacedoutmore,thereforeitiseasiertodeterminethe
exactdistance/parallaxfreesetting.
Installing and Resetting the Scale on the Big Wheel
Side Wheel Parallax - Parallax correction:
To be parallax free, the target must be at the distance equal to the scope focus. Any other
distance will cause parallax error, which manifests itself as apparent movement of the reticle
against the target. The Sidewinder is equipped with side wheel parallax. To adjust the range
settingofthescope,rotatethesidewheelfocusknobtothedistanceyouwanttoshoot.Whenthe
image is sharp, the correct parallax setting is achieved. On higher magnification it is easier to
determinewhethertheimageisinoroutoffocus.Oncetheimageisinfocusthedistancecanbe
readonthesidewheelscale.Thiscansuccessfullybeusedto‘rangefind’thetarget.
ELEVATION TURRET
WINDAGE TURRET
LOCKED
LOOSEN
TO RESET
FULLY UP
TO RESET
UN-LOCKED
Alignthe‘teeth’ofthesidewheelfocusknoband
the reticle brightness control. Then slide the big
wheel completely past the brightness control and
ontothesidewheelfocusknob.
Whenlocated,rotatethescaleuntiltheyardageonthe
bigwheelmatchesthescaleontheinnerfocusknob.
Once aligned carefully remove the big wheel,
keeping the scale in the same position. Remove
theoutterringandtightenthegrubscrewsplease
notetheseshouldnotbeovertightened.Replace
theoutterringandtightenupthethreescrewson
therearofthewheel.
Positionthewheelbackonthefocusknob.
ToreadthescaleontheBigWheelwerecommend
using the Big Wheel pointer. To install, place the
pointer around the body tube, at your preferred
position.
Toinstallthebigwheel,firstofallyouneedtoremovethethreescrewsontherearofthewheeland
thethreehex(grub)screwsontheinnerring.DONOTFULLYREMOVETHEHEXSCREWS.Once
thesescrewsareloosenedtheinnerrubberringshouldrotate.Pleaseensureforset–upthatitis
looseandrotating.Replacetheoutterringbutmakesurethescrewsareloose.
1
2
1. Large wheel
2. Pointer
opeRatioN aNd featuRes
Togetthemostoutofyournewriflescopewerecommendthatyoureadthefollowing,in
additiontothe‘instructionsforuse’soyoufullyunderstandallofthefeaturesandhowthey
operate.
- Side Wheel Parallax
- Big Wheel Pointer - Zoom Magnification
- Sunshade and lens covers - Reticle Illumination - Reticle types -
- BRC Software
4 3
Whenasatisfactoryzeroisachieved,theturretscanbereset.Todothis,simplyloosenthehex
screwonthetopoftheturretsandthenpulltheturretsuptotheirfurthestextent.Theturretswill
thenrotatewithoutclicking.Adjusttothe‘0’zeropoint,pushtheturretsdowntolocateintothe
lockedpositionandre-tightenthehexscrew.
1/4 MOA Turrets
Eachclickofadjustmentisknownasa1/4minuteofangle(1/4MOA).Thismeansthatoneclick
ofmovementcloselyequatesto1/4”ofmovementonatargetsetat100ydsdistance.Therefore
atdifferentranges,eachclickofadjustmentchanges:
50yds=1/8” 100yds=1/4”200yds=1/2”300yds=3/4”
The Sidewinder turrets are factory preset in the centre of the FOV (Field of View). The reticle
needstobeadjustedtothe‘zero’distanceoftherifleonwhichitismounted.
Beforeadjustingtheturrets,youmustfirstunlockthem.Thisisdonebypullingthemout,sothat
theyclickwhilsttheyrotate.Theturretscanthanbeadjusteduntiltheyareonzero.Tolockthe
turrets,simplypushthembackdown.