Right now I have a $1000 rifle that won't shoot any better then 1.75 - 2.5 groups at 100yrds... Seems to shoot everything consistently around 2- 2.5 for 3 shots. My 45-70 guide gun with 2.5x fixed scope does better I have tried RL22 and Retumbo. 140gr Accubonds, 140gr Amax, 130gr TTSX. Played with seating depth on all and different charge weights. Nothing seems to improve or degrade accuracy. Tonight I tried business cards under the barrel..didnt really change anything. Tried the limbsaver barrel deresonator seems to help some but again.... 2"groups. Action screws are torqued to 50ft lbs. All base and scope rings are tight. I am open to any and all suggestions. Kinda hard to hit something at 500+ if your already shooting patterns at 100. All I am looking for is less then 1" for 3 shots... I don't think its to much to ask for. My 280AI does <.5 with the TTSX so don't think its the idiot behind the trigger.