The best part of mils, there's a quick wind formula. Most my rifles are 8-9 mph guns, meaning it takes an 8mph 90° wind to blow my bullet of course approx 0.3 mil at 300y, 0.5 mil at 500y and 0.8 mil at 800y, so knowing that I can use a % value for wind holds. I just need know distance to target, wind speed and direction related to line of fire. Makes for easy wind calls, no chart needed all done in the head quickly.