Just a beginner who has a few questions: I just had my Leupold VX3 4.5-14 x 50LR on my 300 ultra mag zeroed the other day. I have M1 windage and elevation turrets on the scope. My questions are: 1. Do I reset my 0 by using the allen key to re-adjust the elevation knob/zero mark? 2. With the load I am shooting, I have an estimated 41.16" inches of drop at 500 yards pushing a 200 grain accubond. Theoretically, to adjust for this shot with 1/4" MOA scope adjustments, would I calculate the number of clicks by dividing 41.16" /.25"? 3. If my assumption is correct in question #2, would I have enough adjustment in my scope to do this, or would I have to aim my crosshairs higher to compensate for this type of shot? I am really confused and am looking for clarification. Sorry for such dumb questions, but I am just a beginner. Thanks for the advice in advance.