All CCI Primers have a larger anvil place to compensate for firearms that could have an off-centre firing pin and are engineered to permit sleek feeding in automated reloading devices. The APS (Automated Priming Program) primers are preloaded into colour-coded plastic strips for use within the proprietary RCBS APS primer https://z-ndh-tchen-cci-50086307.ampedpages.com/details-fiction-and-cci-250-zündhütchen-58806940