Looking at a Browning BAR Lightweight strictly for hunting whitetail deer here in So. Alabama (and maybe one day elk in Colorado, maybe). I've done a little research so far and here's what I've come up with: 1) Ballistically, there's not a dime's worth of difference in the th two. The .06 runs a tad faster downrange. 2) For reeaaalllly long shots, the .308 may have an edge due to smaller case volume yielding more consistent powder ignition and thus enhanced accuracy. This seems to me to be offset by the fact that, for a given bullet weight, the .308 has a bit more drop than the .06. More importantly, 75 - 100 yards is the average rifle shot here. 200 yards may happen, but only on a power line or big ole food plot. I don't plan on shooting past 250 in any event. 3)The .06 is loaded in a wider variety of loads perhaps giving it more versatility. On the other hand, surplus .308 ammo is readily available at a fraction of the cost of .06 loads. (I do not now, nor do I ever plan to, handload rifle rounds). 4) The .308 may shoot a bit softer (less recoil) than the .06. I'm not particularly recoil-sensitive, but I'm perfectly happy to take a little less punishment. I'm leaning toward the .06 mainly for versatility's sake. I'd like to hear what some of you think. FWIW, I've already seen the post from snipercounty.com (or wherever) touting the .308 as a far superior round compared to the .06. I'm not sure the application behind the argument applies to resonable hunting shots.