Anyone tried one of the new calibers?

[grayghost]

I like the 300RUM myself but I've only used it in Africa. Would use it on Bear, Moose and Elk here and maybe Mule Deer if the shots tended to be longer. I have the .17HMR and love it for Ground Hogs and Squirrels. I have a friend that uses it for close range (100 yds) for Coyotes. Good hunting, grayghost