A friend and I went down to some BLM land for mulies. We both sighted in for long range. I was zeroed at 200, 300WM, and he was the same, 30-06. He specifically bought the 06 for a longer shot in this particular area. If you don't know the area a 1,000 yard shot could easily be taken, not by me, but it could happen. All open space with very clear views.
He got his at 30 paces.