I bought a 223 Tikka T3 with the 1-10 barrel about a year ago. This was a few months before the RAR 223 hit the market. Considering the price difference I would have bought the RAR if it was available in 223 at that time.

I've got no complaints on the Tikka or the 1-10 barrel. Mine's the most out of the box accurate rifle I've ever bought. It's good with everything from 40 gr Ballistic Tips & V-maxes to 63 gr Sierra SMPS and everything between but based on the what I've read here the RAR would seem to be a better value.