The purpose of the Wind Constant Calculator is to provide a means to obtain wind constants for your specific caliber, projectile and velocity when you are using the formula:
Wind value (mph) x Yards in Hundreds ÷ Constant = MOA Correction
Example: 6 Dasher, 105 Berger Hybrid Target @ 2950 fps. You estimate a 9 mph left to right wind on a 600 yard target. Your wind constant for this load at this range is 18.
9 x 6 (600 yards) = 54 ÷ 18 = 3 MOA left or .9 Mils
For those using Mils: MOA correction x .3 = Mil correction
Once the wind constant is obtained, it's good for any velocity wind. Let's for example say the wind died down to 4 mph, same target.
4 x 6 = 24 ÷ 18 = 1.3 MOA left or .4 Mils
To learn more about using the Wind Constant Calculator and obtaining your own wind constant, download the document below:
Wind Constant Calculator (PDF)Enter yards in 100 yard increments
Enter wind velocity
Ballistic app MOA correction for above wind
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Adjust to meet your wind drift deviation limit
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