March 17, 2018


by Barbour Creek in Shooting Tips

The magic of mirage. When the wind comes from different directions or points around the clock, it has a greater or lesser effect on where the bullet hits the target. Below is a diagram of the wind clock .

Three and 9 o’clock winds need a full windage correction expressed as a “times 1.00” or “Full Value” or 100% correction. Six and 12 o’clock winds have no lateral drift effect and so do not require a windage correction – hence 0.00 or “No Value” or 0% correction.

Winds out of 2, 4 ,8 and 10 o’clock are fairly close to the 3 to 9 o’clock axis and require a correction of 0.86”. I usually apply “times 0.75” or “3/4 Value” or 75% correction.

Finally, winds that arise out of 1, 5, 7, and 11 o’clock are closer to the 6 to 12 o’clock axis and need 0.50 correction or anywhere in between – again I usually round out to the higher value – “times 0.50” – that is “Half Value” or 50% correction.