FYI...Tikka stocks are reinforced with fiberglass. That's why they call them "reinforced polymer". I just got done inletting and bedding 4 of them, and there was fiberglass shards flying everywhere.
And the "long action" is the best thing that could happen. Throw a LA bolt stop, and a Long magazine into a medium action...such as a .308 or a 7MM-08, and you can shoot the big bullets fed from a magazine--no prob.
This is what I'm doing with my .300 wsm. I had a browning abolt in .300 wsm that really limited my length. Now I have a LA .300 wsm, that I can load my bullets out to the next county!