My Tikka T-3 light in 308 is my best shooter. I have a ruger I took apart and free floated the barrel and put back together-after that it wouldnt group better than 3-4" Found out I had torqued the 3 bolts that help stock together wrong. I redid to factory specs and fixed it. I fired about 3-4 boxes through it working on scope and everything else. Once i redid it with right torque specs it was a new gun.