I don't think it's worth expending the mental energy on these choices. Pick one and go. Or, just stick with your '06, and spend the $$ on ammo & gas getting to the shooting range.

I just got back from 10 days in hunting camp in BC, & theguides/outfitters therewould just shrugg their shoulders when it came to cartridge discussions - they ALL work if you put 'em in the right place! They've had clients from Russia, Europe, Asia, South America... you name it, and they've seen just aboutevery cartridgecome through their territory. FWIW, the Owner/Outfitter has carried a .30-'06 since he started guiding in 1984.

FC