Hello, I'm new to this site, thought I'd ask for some advice on my new deer rifle project. I'm in the process of setting up a weatherby accumark in 7mm STW. I'm putting a Zeiss diavari 3-12X 56mm on it. Setting it up to shoot whitetails in big bean fields. Most shots average 250 yards out to about 400, don't think I'll shoot farther than that. I don't have a range longer than 100 yards to sight in on, what would be the best height to sight in at? I put it 3" over at 100 yards, figured this would be close to dead on at 300 yards. Don't have a ballistics table to go by either. I'm shooting factory loaded 140 grain winchester ballistic silvertips. Any info would be appreciated.