at 2700 fps for both bullets, the 123 has 6 or 7 " less drift than the 108 at the turkey line, with almost the same recoil...basically none. Wind is almost always a factor, and when it isn't it will be soon again. So in my mind why play with 3 different bullets instead of just 2. The 123 for C,P, and T. Then the 139 for Rams.