The .270, .280, and the 30-06 are all fine calibers for anything that walks in North America and most of the rest of the world. Honestly, there isnt a dime's worth of difference bewteen the three. I understand that they have all been over-shadowed by the hoopla for WSMs and what not, but the fact still remains that they are all reliable game killers. With the proper bullet, I wouldnt feel under-gunned going up against any critter that walks.