Just some other things to think about instead of simply just switching primers right until the cratering goes absent. When in essense all you may have can be an improperly supported primer with stress from it on a single facet and no steel supporting it over the back again facet. https://cci300zndhtchenlargepisto06183.mdkblog.com/37306419/5-tips-about-cci-300-you-can-use-today