MO,the question is blown with the 500 yd requirement. Where does that come from? Don't get me wrong,the right shooter can use a .308 effectively at 500yds,but lets get real.
Yeah, drop that down to a 250 yard limit (the absolute reasonable/ethical limit for 99.999% of hunters) and then we can have a conversation. In that case, if I was actually going to be hunting Elk on a regular basis, I'd go with the 30-06. If mostly deer, the 270 or 308. Probably would choose the 308 if push came to shove.
