Killing power? The power to kill something? Does a 300 Win Mag kill a deer deader than a 30-06? In that case should we all use the 50 BMG because it should ,by your standard kill better than a 338 Magnum. If the ballistics are far superior does this mean that enough can never be enough and we should always strive for more and more power? Should we double the performance of the 300 RUM? That would make it twice as good? We will soon have hunting guns that can not be shoulder fired? I wonder if all the game killed with the 270, 300 Savage, 30-30 and 257 Roberts will come back to life and kick H*#* out of my freezer.