I second that on the CCI primers as a primarily handgun cartridge reloader, when I first started reloading I used CCI primers aswell for 357 magnum, 38 special and 45 acp. With factory hammer springs I missfired about 2 in 50 shots, one missfire in a centerfire is too much. then with my revolver I used a softer hammer spring to help me from jerking while shooting double action, Now I was having atleast 10 misfires in 50 rounds. So initially I switched to federal primers since they are the easiest to detonate, Then later I started using winchester b/c their cheaper. I later found out that CCI often would subcontract primer orders to other companies and not always would they make the primers by CCI's standards and often would reflect in deffective primers. And cci also uses a harder alloy in their primers. To me cci is just strange anyway look at their factory ammo aluminum non reloadable cases with different then conventional priming.