Quick Answer
When shooting a 6.5-284 Norma, consider a 10-12 mph wind correction at 100 yards for a 300-grain bullet, increasing to 20-25 mph by 400 yards, due to its relatively high BC and relatively high wind drift.
Wind Drift Calculation
Wind drift is a critical consideration when hunting with a 6.5-284 Norma. To calculate wind drift, use a ballistic calculator or the Kestrel wind meter. For a 300-grain bullet at 2700 fps, a 10-12 mph wind at 100 yards will result in a 3-3.5 inch drift to the right, increasing to 6-7 inches at 200 yards. At 300 yards, the drift will be 9-10.5 inches, and at 400 yards, it will be 13-14.5 inches.
Wind Drift Compensation
To compensate for wind drift, use a combination of wind calls, lead, and hold-off techniques. For a 10-12 mph wind, aim 3-3.5 inches left of your target at 100 yards, 6-7 inches left at 200 yards, 9-10.5 inches left at 300 yards, and 13-14.5 inches left at 400 yards. Use a shooting stick or bipod to stabilize your rifle and make adjustments as needed. Practice wind shooting drills to develop your skills and build muscle memory.
Wind-Resistant Ammunition
Consider using ammunition with a higher BC (ballistic coefficient) to reduce wind drift. Look for bullets with a BC of .55 or higher, such as the 130-grain Hornady A-Max or the 140-grain Berger VLD. These bullets will maintain their velocity and trajectory longer, resulting in less wind drift and more accurate shots.
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