Quick Answer
To zero a 7mm-08 Remington rifle for whitetail hunting, use a 100-yard zero and set the scope to 2.5-5 MOA for wind deflection at that distance. Consider a 1-inch tall aiming point at 100 yards for a 180-grain bullet. This will provide a suitable starting point for hunting.
Choosing the Right Zero Height
For a 7mm-08 Remington rifle, a 100-yard zero is the most practical choice for whitetail hunting. This allows the bullet to drop 4.5 inches at 200 yards, which is acceptable for most hunting scenarios. To achieve this zero, use a 1-inch tall aiming point at 100 yards for a 180-grain bullet. This can be achieved with a scope height of 1.5-2 inches above the bore.
Understanding Bullet Drop and Wind Deflection
At 100 yards, a 180-grain 7mm-08 bullet travels 2,650 feet per second and drops 1.5 inches below the line of sight. At this distance, a 2.5-5 MOA wind deflection is suitable, which translates to a 1-2 mph wind at sea level. As the range increases, the bullet drop and wind deflection will also increase, so it’s essential to understand these factors to make accurate shots.
Zeroing Techniques for a 7mm-08
When zeroing a 7mm-08 rifle, use a 100-yard target and shoot 5-shot groups to ensure accuracy. Start with a 2-inch wide aiming point and adjust the scope to achieve the desired point of impact. If the point of impact is above the aiming point, raise the scope 0.25 MOA; if it’s below, lower the scope 0.25 MOA. Repeat this process until the point of impact matches the aiming point.
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