you cannot over stabilize a bullet, may get a bit of yaw with fast twists and light bullets slightly affecting accuracy, but they will settle down,, I have them twisted 7,8,9,10 and 12, best shooting one of the bunch is an 8 twist with 55, 60, 62, and 69 gr bulllets,, so is it twist or the individual barrel? with bullets below 75 gr an 8 twist quality barrel will be fine
