shato - good point your trying to make, the problem is some people refuse to admitt facts. the bigger calibers ARE more efficient killers. period. And like you said, the flat shooting calibers are not what theyre cracked up to be. if you look at the ballistics table nearly all calibers pretty much fall out of the air between 300 and 400yds (4-6"drop at 300 to 15"+at 400), so no matter what caliber you shoot your going to HAVE to know it prewtty intimately to go past 300yds.
James B - you still dont get it. the 338 is a "outstanding performer" on big game while the 270 is ...uuuhhh...uuummmm....weeeeellllll.....controvert ial