VA - Tikka the least accurate??? I doubt that very much. I would think the Ruger would be less accurate than either the Tikka or the Browning. Being a fellow lefty and owing a Ruger 77, Tikka T3 and Browning A-bolt I have to relate my experiences with all three. First the Ruger 300 WM): This rifle needed both a trigger job and a bedding job to get it to shoot to my satisfaction. My A-bolts (a 7-08 and 325 WSM) both needed bedding jobs to shoot 1" - <1". The Tikka (30-06) shot great right out of the box. Shooting 1" - 1 1/4".
The only rifles I own that shoot better are my Savages