Is it necessary to zero in differently for 6.5 and .308?

Understanding Bullet Drop and Trajectory

When choosing a caliber for whitetail hunting, it’s essential to consider the bullet drop and trajectory of each option. The .308 Winchester and 6.5 Creedmoor are two popular choices for hunters, with the .308 being a more traditional caliber and the 6.5 being a newer, more aerodynamic option. While both calibers are capable of delivering effective shots out to 300 yards, their bullet drop curves differ significantly.

Zeroing for the .308

For the .308 Winchester, it’s common to zero the rifle at 200 yards, using a 200-yard zero. This allows the bullet to drop approximately 12 inches at 300 yards, which is a reasonable trade-off between accuracy and trajectory complexity. Using a 200-yard zero for the .308 ensures that the bullet will hit close to the point of aim at closer ranges, making it a reliable choice for hunting whitetail deer.

Zeroing for the 6.5

In contrast, the 6.5 Creedmoor has a more gradual bullet drop curve, making it well-suited for longer-range shooting. A common practice for the 6.5 is to zero the rifle at 300 yards, using a 300-yard zero. This allows the bullet to drop approximately 9 inches at 400 yards, making it a more accurate choice for hunting at longer ranges. However, it’s essential to note that a 300-yard zero for the 6.5 may require a more complex ballistic calculation to ensure accurate shots at closer ranges.