The most basic version, a small ring is created at the shot's landing spot. However, a miss is required to deal damage because damage is only dealt in the circumference of the ring. If you were to shoot at 90 degrees in the air, the ring will reach approximately 1/3 of your aiming circle.
This one is noticeably bigger, and the damage has increased to 50. However, because of the increased radius, you will need to aim more to the sides. If you were to shoot 90 degrees in the air, this ring will reach approximately 2/3 of your aiming circle.
This one is right in the middle between ringer and heavy ringer. It creates 5 identical rings that deal 15 damage each, for a total of 75, so try not to miss. These rings have the same radius and reaches approximately 1/2 of your aiming circle.