Hi Tom,
If you read the most recent article on the Tikka T3 in Shooting Times. They clearly state that even the Sako employees don't which barrel will be mated to the Tikka or Sako recievers. They literally pull the barrels from the same line.
If you check the websites for Krieger, Shilen, Douglas, Hart, Pac-Nor, Lilja, etc. You will see that barrel contour has nothing whatsoever to do with barrel grade. A match grade barrel can be had in nearly any contour fluted or unfluted, and in any thread size, or shank thickness. The fact that Tikka and Sako use different contours, does not mean that they are different barrels. According to the thier own spokesman, they are in fact the exact same barrels.