My groups with the 120 gr BT and 49 gr of BG looked a lot like the group posted above. It was right at 3k fps in my gun. Worked up to 51 gr and the groups were slightly larger. Put it back at 49 as I like cup and core bullets around 2900-3000 fps starting velocity. Now the 120 ttsx, I push at 3175 with BG with .75 MOA accuracy.