An ammunition press for manufacturing or reloading ammunition cartridges. The ammunition press includes a slide bearing about which the ram of the ammunition press moves to provide smooth operation of the ammunition press. A configurable spent primer system is provided to enable a user to select how they want to collect spent primers or other debris from the ammunition press. According to a user's preference, the ammunition press can also be customized to provide a cam-over or non-cam-over sensation as the user operates the ammunition press. A light is integrated with the ammunition press for illuminating a shell holder that holds the ammunition shells (sometimes called cases). Components of the ammunition press and associated methods are also disclosed.