I have a Tikka Big Boar in 308. This gun has always been crazy for me. I was getting good 100 yard groups but at 200 yards it would throw bullets everywhere. I remounted scope and mounts and it did seem to help. Here is my latest group at 100 yards. The inside group is 168gr Win. and the outside 150 Win. Question is is there something else that needs attention to tighten up the group. I have tried lots of other loads and now just losing confidence. I am using deadnuts mounts and Leupold MK4 2.5x8. I am confident in my shooting abilities but just stumped. Any ideas would be appreciated from you guys in the know. Thanks