I purchased a .300 H&H in 1962 and my first .300 Win. mag. ten years later. I have shot .300 Win. mags. a great deal and have killed a lot of elk with them over the years. It is a good cartridge. But, I don't believe any of the elk I killed with a 300 Win. mag. would have fallen any differently had I been using a 30-06. Today, I carry a .30-06 for my serious hunting and a .30-30 for my fun-hunting days. CP.