All CCI Primers have a larger anvil space to compensate for firearms that will have an off-centre firing pin and therefore are engineered to permit easy feeding in automatic reloading gear. The APS (Automated Priming Technique) primers are preloaded into colour-coded plastic strips for use while in the proprietary RCBS https://donovanuwvuq.onesmablog.com/considerations-to-know-about-cci-250-72142905