What is the function of the case in a cartridge?

The function of the case in a cartridge is to hold all components of the cartridge together. This includes the bullet, powder, and primer. The case serves as the container that maintains the structural integrity of the cartridge, ensuring that these components remain in place until the cartridge is fired.

When a cartridge is chambered in a firearm, the case also assists in the alignment and secure seating of the bullet within the firearm's chamber. Additionally, when the primer is struck and ignited, the case retains the pressure produced by the burning powder, allowing the bullet to be propelled accurately down the barrel.

Understanding this function emphasizes the importance of the case in not just holding the parts together, but also in enabling the proper functioning of a firearm. The case is integral to ensuring the safe and effective operation of ammunition.