Cherokee, I did get a chuckle out of that. And no offense taken earlier.

I found this link posted in another area by ElkKamp that I thought was pretty good for this discussion. It does not take into account trajectory, only energy I believe. It basically says how far (in yards) a given cartidge is effective at for a clean kill. You'll notice it does give a range for a .270 on a 600 pound animal (like an elk). I am not going to comment on the chart right now, take from it what you will, I will check back later.

http://www.chuckhawks.com/game_range_caliber.htm