As I recall, the point of aim was actually 32" above the group. You HAD to know that didn't you?

The rifle was zeroed at 100. When they group that steadily, and you know the range and bullet drop......
Don't expect those Powerbelts will do anything but spray.
Try some Bullshop conicals, in particular try some of his 460 grain MT NEx or 500 grain N373 bullets. His prices will make your jaw drop in pleasant surprise.. and he gets them to you from Alaska in fairly short order. I just ordered in 500 of his 460NEx myself, even though I cast. I believe total cost was $111.xx delivered for 500 beautiful lubed conicals.