I would suggest you get an OAL gauge and measure the distance from the bolt face to the lands. It's been my experience that Tikka's have a lot of freebore. For example, my Tikka T3 Lite 300 WSM
magazine measures 2.91" but that doesn't get me anywhere close to the lands. When shooting 180 gr Sierra Matchkings loaded to an OAL of 2.90 I'm still jumping them a whopping .170"
But the accuracy is still great so I don't worry about being close to the lands.