I love my Tikka T3 270WSM and shoot 140-165 VLDs in it with extreme accuracy.
JTBear is right about the magazine length being an issue. I created a magazine that works with VLD bullets and am building a more formal prototype right now.
This will work with the stock bottom metal.
If you're not worried about magazine length for VLD bullets, it will work without an issue.
Keep an eye on TikkaShooters.com - Tikka Shooters Home
for progress on the new mags. I should have the final product ready within 4-6 weeks.