Title really says it all... I know that Federal primers are considerably softer than say CCI's primers... what I'm curious about is if there is a difference of hardness between Federal's SP and SP magnum primers? I have a Vanek Trigger in my Glock... it doesn't pop the CCI primers reliably, so I had to put the "medium" firing pin spring on to do so. Charlie says himself that the lightest firing pin spring may not fire CCIs, but should fire Federals. Well, I picked up a 5 hundred Federal SP primers just now, to see how well it works. I have an order in at PV for 10,000 magnum primers, and I want to make sure I'm comparing apples to apples?