Much as I like the rugers, I hate the shiney chrome like stainless of the all weather versions. I would buy the Tikka because of this. It will also be a better shooter gauranteed and has a clip which I like.
You can glass bead the Ruger for 20 dollars and get it done or wrap it in tape. I would not be so sure the Ruger will be outshot by the Tikka. Every Ruger I have owned has been a very good to extremely good shooter. Don't compare both rifles in rugged conditions or bad weather conditions the Ruger is much better. If you need proof find out what the firearm of choice of Alaskan hunters is and then tell me. You like paying 79 dollars for a plastic clip?