The 7mm Remington Magnum is a rifleman's cartridge. Sam Fadala argued that it was actually more versatile than the .30/06, Rocky Chandler wanted the US military to adopt it as their primary sniper cartridge over the .308, and Warren Page wandered the earth with a custom 7mm Mashburn, a close cousin to what would later become Remington's premier cartridge. To my way of thinking, the 7 mag is a general purpose big game cartridge, at its best as a moderate to long range number on game up to the half ton range. Not everyone agrees with this analysis though; Manitoba DNR keeps a stainless Browning in 7 mag here as their dedicated polar bear gun, for those instances when a shotgun doesn't cut it. Previously they had a M-70 in .338. I'd have kept the M-70 myself, but the attitude across the street right now favors high velocity small bores.
When selecting a rifle, a guy could do a lot worse than the North American standards, The Winchester M-70, Remington M-700, or the Ruger 77. The imports from CZ and more recently Zastava, have established a following due to their better than average quality and competitive price. The last 7 mag I shot was a S&W 1500 built on a Japanese Howa action. For a time Howa also made the Weatherby Vanguard action, although I'm not sure they still do, the new Vanguard's action seems to be a little more streamlined, where the Howa has a massive striker. SAKO makes a fine rifle if you have a thick enough wallet, but once you're spending that much there are many off the shelf and semi custom rifles to choose from. Because I'm a Winchester M-70 enthusiast, I might check out the offerings from The Montana Rifle Company.