Which process involves removing the primer from a cartridge?

The process of removing the primer from a cartridge is known as decapping. This operation is typically a part of the reloading process where once-fired brass cases are prepared for reuse. During decapping, the current primer is extracted, allowing for a new primer to be inserted later. This is an important step because the primer is a vital component of a cartridge, as it ignites the gunpowder when struck by the firing pin.

Re-priming refers to the subsequent step after decapping where a new primer is installed into the case. Loading involves filling the case with gunpowder and seating a bullet, whereas sizing is the process of reshaping the brass case to ensure it fits snugly in the chamber and functions correctly. Decapping is thus key to preparing the cartridge for successful reloading, as it establishes a clean slate for the primer.