Quick Answer
To adjust for wind drift, calculate the deflection angle based on wind speed, distance, and bullet drop, then apply the correct windage correction on your scope. This typically involves a 10-minute-of-angle (MOA) adjustment for every 1 mph of wind speed and 100 yards of distance. Use a ballistic calculator or consult a chart to determine the exact correction.
Understanding Wind Drift
Wind drift occurs when a bullet is deflected off course due to wind resistance. The amount of deflection depends on the bullet’s momentum, wind speed, and distance. A 1 mph wind can deflect a bullet by approximately 1-2 inches at 100 yards. For long-range shooting, this deflection can add up quickly, making it essential to account for wind drift.
Calculating Wind Drift Correction
To calculate the wind drift correction, you’ll need to know the wind speed, distance, and your bullet’s ballistic characteristics. A common formula is to use 10 MOA for every 1 mph of wind speed and 100 yards of distance. For example, if you’re shooting at 800 yards with a 5 mph wind, you’ll need to add 40 MOA of windage correction (8 MOA per 100 yards x 5 mph x 10 MOA). Consult a ballistic calculator or wind chart to determine the exact correction for your specific situation.
Applying Wind Drift Correction on Your Scope
Once you’ve calculated the wind drift correction, apply it to your scope by turning the windage knob. Start with small adjustments and verify the correction with multiple shots. Remember to adjust for both the deflection and the bullet drop to ensure accurate hits. It’s also essential to consider other environmental factors, such as temperature and humidity, which can affect bullet performance and drift.
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