If you ask 10 different instructors about the use of a diagnostic target, you’ll get 10 different answers. Getting help from a professional instructor is the best way to improve your shooting techniques. With that being said, a diagnostic target can be a useful tool for new shooters who are trying to learn the foundations. If your grouping is located in one of these areas, you can adjust your grip accordingly. Take note that the areas are different for right-handed and left-handed shooters, so make sure that you download the right target for you.