The parallax knob (or target aim knob dependant upon what your scope’s manufacturer phone calls it) moves the location with the goal’s graphic with your scope. You may area a bubble level or simply a leveler kit concerning the flat place under the rail and turret adjustments for getting it https://whitelightopticalsights26924.bloggosite.com/33241043/indicators-on-adjust-gun-scope-you-should-know