Which of the following is true about the case in ammunition?

• A. It houses the primer, gunpowder, and projectile
• B. It is the projectile
• C. It is used to store spent casings
• D. It acts as a safety mechanism

Answer: (A)

The cartridge case serves as the container that holds the primer, the propellant (gunpowder), and the projectile together. When the firearm is fired, the primer ignites the powder, creating high-pressure gas that pushes the bullet out of the case and down the barrel. The case also seals the chamber to contain that pressure and is ejected after firing. The projective itself is the bullet, which is separate from the case. Storing spent casings is not a function of the case, and safety mechanisms are not provided by the cartridge case.