FWIW, I have owned rifles chambered in 9.3x62, 9.3x64 and 9.3x74R. I used them almost exclusively for hunting elk, both here in New Mexico and in Colorado. I have let them all go on down the road, and I am once again hunting just about everything with a revitalized pre-64 Model 70 .30-06 that I bought new when I graduated high school in 1961.
If you hand load, the venerable '06 can handle anything in North America. I have used it to take "big game" ranging from pronghorns and Coues whitetails up to elk and bison. You can also find factory ammo for the '06 in just about every venue that sells ammunition.
