I'm not impressed with them either. I don't know squat about testing true B/C vs dreamed B/C, but past about 400 or so yards these things simply wouldn't stabilize in either my 6.5x55 or my 6.5X284, both of which stabilize the 142 Sierra and 140 AMAX well at those ranges.

They'll print a nice round hole and decent groups on the target at 300 but won't hit a 4x4 sheet of plywood at the 4.