The tikka is nice, a buddy of mine has one in a 270 WSM and I really like how it functioned. I'm particular to the Savages my self, I've heard the new LR hunter maybe in a 7mm also, there's always the Sendero.
There have been guys playing with the 169.5 Wildcat in the 270 WSM and it will out run the 7mm without pushing it, I can run mine with 140's right with a 7mm shooting 168 Berger clean out to 850 then the 7mm is only marginally better
Rebarrel your Tikka to a 7mm WSM!!