A type of nurse shot used in English billiards in which two coloured balls are positioned on either side of the mouth of a snooker table pocket but not touching and, thus placed, can be successively contacted and scored off over and over by the cue ball without moving them. The cradle cannon 's first known use was by Walter Lovejoy in 1907. The unofficial record using the shot is held by Tom Reece who in 1907, over the course of a month, scored 499,135 points using the cradle cannon before stopping without missing. This feat prompted the Billiards Association to outlaw the shot . The official record is held by William Cook with 42,746 points scored. Compare anchor nurse .