Hands down it is the 30-06. Our great American military used it to defeat evil around the world and then came home to hunt every critter in North America with it. If fed it the right bullet and load it handedly kills deer and every thing else in between including the big bears of Alaska.
It's case spawned many other cartridges, from the 25-06 Remington, .270 Win., 280 Rem., .338-06, .35 Whelen up to the .400 Whelen and their improved versions. It is and will always be a good choice for any riflemen and the super bullets we now have made it even better.
If I ever have only one centerfire big game rifle it will be chambered for the great 30-06!
And yet, it remains the offspring of the equally great and equally as historic 8 X 57 as is any cartridge derived from the '06.
You know sharps that you CAN make 8X57 cases from 06
