one of the reasons so many deer have been killed by 30-30's is the fact that it expends all its energy in the animal not passing through,,that said any bullit that exits the target is wasteing energy that isnt doing anything.in this state we hardly ever shoot over 100 yards so we dont need magnums,,,ive had three or so 270's and i wouldnt give you a penny for any one ever made...im sure they work great out west but here they just punch holes clean through. i believe any high velosity round does at 100 yards. i stand by 30-35 cal rifles in moderate rounds like 308-or 30-06,,keep your little 223's and 270's for shooting chucks...thats all thier good for