The rear sight may be adjusted to shoot higher or lower (elevation). Turn the rear sight elevation screw clockwise to make the pellet hit higher on the target. Turn the screw counterclockwise to make the pellet hit lower on the target.
The rear sight can also be adjusted to shoot left or right (windage.) Turn the screw on the sight to the right if weapon fires to the right, turn it to the left if weapon fires to the left.