I posted this same question over on the " GUN" section, but then I thought it was better suited here.

I have a Savage model 110, .243 Win, synthetic stock, 4-12x42mm scope.

It doesn' t matter which bullet weight that I use, either 80 ggrain bullet or the 100' s.

When shooting at 100 yards, off of sandbags, the second bullet strikes about 1/2" up to left of the first, and the third bullet strikes up to the left of the second. Both bullet weights, every time, same exact way. The barrel is free floating, before and after each shot, it isn' t warping into the forearm. (I' m checking this by put a dollar bill between barrel and forearm to see if it catches) Each three shot group is fired about 20 seconds between each shot. Then I let the barrel cool for about 5 minutes between groups.

What do think is causing this?