7mm-08, I'm in a slug only state, but any whitetail hunting I'd do would be hard pressed to shoot over 300yds let alone 200yds, So I think the .308 case is a great choice, though I prefer it in 7mm, little more velocity, longer range, lighter bullets. If I had to shoot out to 500yds, I'd choose a .270Win.I think. Under 300yds I'd probably take a 7mm-08, maybe a .308, past 300yds I'd take a .270 Win.