I verified that it was an 8 twist. Took it out again and shot some 155 V-max's at 900 fps. The holes were much better. Am I just crazy? I snapped a few pics of targets from the 208s and the 240s. Is it possible that they could be starting to yaw just from hitting the backerboard of the target? Maybe I just never noticed this with the last rifle.
3 shots, 208 Amax, velocity ~1000:
Closeup of a different shot, 208 Amax velocity unknown:
5 shots, 240 SMK, 1050 fps (2 in same hole, 1/2" up and to the right of target):
