Canadian Firearms Safety Course (CFSC) Practice Exam

One size of shotgun shell noted in the text is 3" (76mm). This size is common in the shotgun ammunition market, particularly for hunting and certain competitive shooting applications. The 3" shotgun shell offers the advantage of holding more shot and powder compared to shorter shells, which can provide increased lethality and range, making it suitable for various game.

The other sizes mentioned, such as 2 1/2" (63mm), 4" (102mm), and 5" (127mm), are less common in typical shotgun use. While 2 1/2" shells do exist, they are often used in specialized applications or older firearms. The significantly larger 4" and 5" shells are not standard sizes for modern shotguns and are generally not found in regular shooting contexts.