For deer size game I would sight in 3" high at 100 yards with your 150 gr bullets in the 30-06. That will put your point blank range where you will not be over or under 4" all the way out to 300 yards. And with a center of the front shoulder hold you will kill a deer out to 300 yards. As with any calculation of point blank range you need to shoot your rifle at 100, 200 and 300 yards to verify where your individual rifle actually shoots.