California Firearms Safety Certificates (CAFSC) Practice Exam

In the context of ammunition for firearms, a cartridge typically consists of several key components: a primer, a projectile (bullet), and a case that holds the powder. In the case of shotgun shells, the components include a primer, a wad, and pellets (the projectiles).

The choke, which is a constriction at the end of a shotgun barrel, affects the spread of the shot as it exits the barrel but is not a structural component of the ammunition itself. It serves a different function related to the shotgun's operation and performance. Thus, identifying the choke as not being part of a cartridge or a shotgun shell is accurate, as it does not comprise any of the fundamental elements of a round of ammunition.