I always have at least a couple of .300 magnums around, and always have a .30-06 or two as well. Right now have a .300 WSM and a .300 Winchester Magnum. But anymore I mostly use the .300's to break scopes during tests, and hunt with the .30-06.

Anybody who thinks a .300 WSM gets .300 Winchester velocities while kicking like a .30-06 hasn't fired many .30-06's, and evidently swallowed the advertising BS about the .300 WSM when it came out.

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck