No doubt the RAR is a great value but I'm curious to why you feel it's "better by a mile" than the Tikka. I've looked the Ruger American over, just haven't had any time shooting one yet. I have quite a bit of experience with Tikkas and they have been flawless performers to date.
Boolits matter more than headstamps and a rifle can be no better than it's boolits.
Tikka slams doors shut,with twist rate and that sucks ass by [bleep] miles. Then there is of course the schitty Tikka build,the '06 lengthed 223 action and a host of mechanical Goat [bleep] in conjunction with a [bleep] twist rate(s).
The RAR trigger will come down to 1#,it'll reliably stabilize sinister boolits and it's ALL there in superior fashion and surprisingly for less money.