30-06 Trajectory

[Pumpkin Head]

Hello,

I have a question that is not related to reloading but I felt the participants in this forum may be the most qualified to answer.

Over the weekend I was checking the zero on my A-Bolt 30-06 in preparation for a hunting trip. I had the gun zeroed at 100yds and it checked out fine. I backed the target up to 200 yds, as I may be presented with a longer shot on my trip, and my group was a full 6 inches below zero. The windage was dead on with the 100yd group.

I was shooting a Winchester 150 grain pointed soft point and the barrel length is 22 inches. I did not have much time to work with it so I left things the way they were but I am trying to find out why there is such a drop in the point of impact. Please let me know if you have any ideas.

Thanks,
PH