I'm with LoonWulf, I would ignore it too, after all it is a hunting rifle, barrels are sensitive to heat. I would check and see if after you shoot 3 or 4 rounds if the barrel is still free floating by running a dollar bill between the barrel and forearm, this will show any contact points where the barrel touches the forearm causing your groups to open up. Also I would check that the action screws are tight and have not loosen up, also same thing with your scope mounts make sure they are still tight. Hate to say it but we need to go back to basics and ensure with every shot you take that your cheek weld is the same , your breathing, and that each squeeze of the trigger is identical, too fast a pull equates to jerking the trigger.
Personally I make sure that my cold bore shot is always the same where I am aiming as it is the most crucial to killing a deer, or elk , or a squirrel.