Here are three scenarios on shooting practically in real wind conditions. While there is no set formula that takes the place of experience, there are tools and methods to making consistent hits in a real world environment.
The first scenario was a shot at 873 yards, measured with a G7Br2 rangefinder. The solution of 15 MOA provided from the unit was correct,
but getting a first round impact can be very difficult in variable wind conditions.
The conditions for the first shot were as follows. Temperature: 76*F with 66% Humidity and 30.05 mb of air pressure. It was partly cloudy with no direct sun. The target was located just above the arrow in the picture.