The gun mph system is the fastest way to dope our rifle for wind. It is easy, intuitive, and very quick once we get the hang of it. It’s great for making an initial wind call and for reverse calculating what the actual wind speed is. (If you are not familiar with the Gun MPH system and what its wind brackets are, I suggest reading the Managing the Wind article about this system.) If we miss our first shot from a bad wind call, then make a correction and hit our target, we can reverse calculate to know what the cross wind speed and the actual wind speed are. Here is an example of that process.
Example 1:
Target at 400yds. Initial wind call is 0.8 mil right for the wind we measured (15mph at 1:00) for our 5mph gun.First shot = miss off right edge (too much wind hold).We observe the miss splash and see it is 0.4 right of the target center.Move to 0.4mil right to center and send the...
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