Primers ?

[alwie]

I shoot primarily AR15s, and load for plinking and target shooting. For plinking I use CCI #41 primers and for target shooting I use BR4. Both to my knowledge have a thicker cup …. which is a good idea when shooting a rifle with a floating firing pin. When I was in the Marines we did a live fire exercise at 29 Palms. One of the grunts while on patrol tripped and fell striking his M16 on a rock. This impact cause a round to discharge and injured a fellow Marine in the platoon.