Update... Been really busy, sorry about the delay in updating. Today, I took stock off, backed the trigger down to 2.5lbs, reinstalled stock(accustock per recommendations on this forum). Mirror clean bore. So I settled in at 100yds.(Decided I was going to shoot 5 shots, also note barrel was allowed to cool between every shot) First 2 shots were bullseye literally in the same hole. I'm smiling at this point. 3rd shot, was 1 inch high and 2.5 inches right of 1st two shots. 4th shot was off the target (who knows where) 5th shot was 5 inches left of 3rd shot, or about 2.5 to 3 inches left and 1/2 inch high of bullseye. After shooting I cleaned bore again it was loaded with copper fouling. On a side note in between shots with the .260. I shot a 5 shot group you could cover with a nickel with my american classic .243. Any thoughts?