Shot, or shot pellets, are the small round balls that are used as the ammunition in shotshells for shotguns. There are different types of shot available, each with different sizes and weights, and each type is suited for different uses such as hunting, target shooting, or personal defense.
The size of the shot pellets is expressed in terms of "shot size" numbers, with smaller numbers indicating smaller shot and larger numbers indicating larger shot. Some common shot sizes include #7.5, #8, #9, #4, and #00.
When reloading shotshells, it's important to choose the right type and size of shot for your intended use and to make sure that you are using the correct wad, powder, and primer for your reloads. It's also important to follow all safety precautions and guidelines when reloading shotshells, as there is potential danger in handling firearms and ammunition. If you are new to reloading or have any concerns, it is recommended that you seek guidance from a more experienced reloader or consult a reputable reloading manual.