Re: Question: How many scope clicks.....
The formula is not hard to use, it's just a matter of getting used to using it. The nice thing about it is it's extremely adaptable. As long as you know your distance from the target in yards, the deviation of your trajectory in inches, and the MOA value of the clicks on your sight (scope), you can work the formula.
It's especially helpful when you get into scenarios where you're shooting at odd distances. Let's say a Sniper is set up at 283 yards from a given target. With a quick check of his ballistic table (and probably a bit of extrapolation), he determines his bullet will drop 12.7" at that distance. Does anyone have their ballistic program set up to give a precise sight adjustment for a 12.7" correction at 283yards? No? So what's our sniper to do? Simple, he just runs this formula (or, more likely his spotter does). Since he already knows the click value of his scope is 1/4 MOA (.262"), the formula would go like this:
12.7 / (283/100) / .262 or
12.7 / 2.83 / .262 = 17.12 clicks of elevation to compensate for the drop at that distance (the decimal remainder actually works out to more than that, but it doesn't matter because you can't put .1283684 "clicks" on your sight, so you simply round it to the nearest whole click, in this case that's 17).
This formula also adapts to any sight so long as you know the MOA click value for that sight. Just substitute that value for your last division factor. If you have a sight calibrated in 1/8 MOA, that factor would be .131". If it's half MOA then the factor would be .524. And, for you MIL-Mil guys, if you use 3.6 as your final factor, your solution will be expressed in Mils. If you use .36 your solution will be in .1 Mil clicks. In my example above, the formula would look like this for a .1 mil solution.
12.7 / 2.83 / .36 = 12 clicks of adjustment to correct for the 12.7" of deviation at 283 yards (I just ignored the decimal remainder and did the rounding for you).
This is a great formula, it works for any sight, at any distance, and so long as your numbers are correct and your click values are precise, it will put you POA/POI at any distance.
Did I happen to mention I hated math in school?
HRF
