Just looking for any suggestions for me, I have a Winchester mod 70 super shadow in a 300 wsm. I am on my second scope (in 4 years) I have taken my current sightron scope off twice and made sure all is tight, I have shot 4 different factory loads with 150 to 180 grains, I have also shot 3 different reloads through the gun reloaded by a friend that has reloaded for me for other guns that have been great. I have many other rifles in smaller calibers that I can group very well, but for some reason I just can't get a tight group. I shoot off of bench with a lead sled, so I know I am not just nervous about recoil. I have had the trigger worked on, as I have on my other Win mod. 70s. I have never done any more work on my factory bought rifles, and never had this problem. Does anybody have any good advise or thoughts for me? Thanks a bunch for any help Chad