I have a tikka T3 lite in .308 and it's always done me just fine. However the other night I was shooting at a lovely 100m indoor range to remove some of the wind variable for zeroing. My rifle was consistently shooting point of aim first round, then one and a half inches high to 11 o'clock then back to the original point of aim third round. This happened over several targets.
I had noticed that the barrell wasn't quite free floating the whole way back to the action so we removed the stock and filled some off. The problem persisted. I tried with the silencer on and off and the same issue was happening. I can't say I have ever had this problem with it before and he rifle probably has only had 400 rounds through it ever.
I was shooting 150grain federal soft points - I then swapped to 150g ballistic tip Norma's and the problem decreased slightly but again the odd 'thrower' persisted.
I know its not my shooting as I was shooting the other chaps .223 to near a thumbnail.
Any out of the box ideas? Cheers