then you can use the 220 on moose and anything else in north america and a good bit everywhere else.
The same can be said about the 300 mag and IMO it is better choice if you want to chuck and get the advantage out of the 200 gr plus lead. I would feel confident and have on using my 7mm rem mag upto Moose sized game. Their simply isn't anything it won't due with 160 or even 175 gr bullet that the 06 will with 180 or larger. For large bears or dangerous game neither would make me feel to great toting, the 300 wim mag would be the smallest but in truth I'd much rather have 338 win or larger in that case. As to varmits the 7mm with proper bullet will work fine but if truly interested I think a specialized rifle for varmits is the way to go. Long and short many appear to crossover and may work to a degree, however in reality few will truly suffice for everything in NA. Good news it just means we all need a few guns in our cabinets...now tell me where the down side is..LOL! Not saying the 06 isn't a great choice for an all arounder for NA Biggame needs upto the big bears and the odd yote/varmit but I disagree it has any advatange over the 7mm rem mag or a few others for that matter either!
Not being a jerk just stating my opinion!