Dan, I am considering(going to buy) a 6.5 X 284 for ground hog hunting out to 600 yards. Right now I use a 300 WSM heavy barrel. Do you have any comments about your rifle or load that might help me. I consider myself to be extremely proficient at a distance of 400-500 yards. I realize the next step to 600 is going to take some time. I have been shooting for 40 years and I laugh out loud when I hear some of these shooters talk about buying their new rifles so they can shoot to500.I realize my 300 would do the job, but I just feel the need for a new rifle. Our shooting range was just extended from 440 yards out to 560 yards(about $1000 worth of dozer work). I am considering the 6.5 X 20 Leupold(with VH reticle)for my scope, I am also looking closely at the straight 16X Leupold. What do you think about these scopes. Remember this is going to be a hunting rifle. Tom.