ANATOMY OF A SHOTSHELL
All shotshells share a few common traits. The head and primer are similar in all shells. The hull and base wad are paper or plastic. The wad design and powder vary with the type of shotshell and its intended use. Shells can range in length from 1 3/4 to 3 1/2 inches and in payload weight from 3/8 ounce to 2 1/2 ounces. They are loaded with lead, steel, bismuth and tungsten alloy shot, as well as slugs and buckshot.