Hawke Sport Optics 4.5-14x44 Sidewinder 30 SF Riflescope (10x Half Mil Illuminated Reticle) - Manual (Page 11)

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Therefore at different ranges, each ¼ MOA click of adjustment changes:
50yds = 1 ⁄
8
in, 100yds= ¼ in, 200yds = ½ in, 300yds = ¾ in.
50m = 4mm, 100m = 7mm, 200m = 15mm, 300m = 22mm.
ZEROING (RIMFIRE & CENTERFIRE RIFLES)
PRE-ZEROING
Pre-zero sighting can be done either visually or with a bore sighting collimator. If a bore sighting
collimator is not available, it is recommended to pre-zero visually.
1. With the firearm in a steady rest position, open the action of the firearm and look along the
bore to a predetermined target (at approximately 50 yards/meters).