Gamo Bullet Trap Rocker Swinging plate pellet trap Learning to improve your precision and loading times The Gamo Rocker Pellet Trap can be reset without getting up from your firing position. When a round target is hit, it locks in the up position. The target can be reset by simply hitting the large square center target. This causes all of the round targets to drop and reset for more shooting. Recommended for use with lead airgun pellet and lead shot only. This trap is best suited for airguns with muzzle velocity of less than 750 fps.