When i said the 270 was dropping the deer in their track i was using warm hand loads and taking only shots that were almost always perfectly broadside (yea i knowthat dosent exist, but anyway). the deer would jump up in the air when hit with a heart shot and with lung shot most would simply stagger a few steps and fall over. the monster buck ( 8 pointer) i shot with the 458 ran like a bat out of hell for about 50 yards in the alders and hit the ground like a sack of potatoes. so much for the more energy the better . i now know better and will stick with a 270, 30-06, 243 or the like