Hey all, my father just bought a 7.62x54 PSL rifle witht the commie 4x6 lps scope. Before we go to the range and start jerking around and wasting ammo I want to know how to zero and set the scope up. I am not very scope savy so excuse my terminology. Am I correct in saying each of the two knobs has two adjustment? For example if you turn the whole elevation knob those 10 adjustments are they for making rangeing ajustment on the fly and the top thin part of the knob is for zeroing? Also each knob(elevation and windage) has three screws on the face of it, i'm assuming the middle screw holds the knob to the scope and the two outter screws are set screws that lock down the zeroing adjustments. Am I right? Which is which? Also those "on the fly" compensation adjustment where should they be set for zeroing? Elevation at 0 and windage at 0? the elevation has 10 settings and the windage has 20 marked 10-0-10 jeft to right. I hope someone knows what I am talking about, thanks ahead!