Please note that I have no experience with Ruger's Target line of rifles.
Having a preference for controlled feed actions and also stainless steel, I've owned a few Ruger rifles as they are one of the few moderately priced options among this market. The Ruger rifles which I have owned have not displayed stellar accuracy, however: most have been capable of only slightly better than 2" five shot groups from the bench for me. That said, I tried to accursed a Hawkeye about a year ago by dropping in a Timney trigger and bedding the laminate stock. Although I've heard a fair bit of positive feedback regarding Ruger's new LC6 trigger, I never fully warmed to it and for me the Timney replacement was worthwhile for me. The bedding I would not do over again.
What was the result? In my hands I am capable of 1.25-1.5" five shot groups with the rifle at 100, representing about a 1/2" improvement for me. For reference, though, I've shot several stock Remington 700's or Savages which have been capable of better groups right from the box. Based on this limited anecdotal evidence and some of the alternatives, I'd be reluctant to try building a precision rig on a Ruger action again.
Good luck!
Ryan