Quote:
|
Both the red & Blue sets were fired in the same rifle with the same bolt & head. If the hole was excessively big I'd expect the same fault in both.
|
The indentation may not show if you don't have high enough pressure. Your hand loads are significantly milder than then milsurps.
Quote:
|
Yes the handloads are backed off 100 FPS from the military load. The R1M3z clocked through a Chronograph at a standard 2450 FPS, but I download the handloads a bit as that's a sweet spot for accuracy.
|
2345 fps versus 2450 fps, that's 7%. The pressure difference could be as much as 25%.
Quote:
|
The bottom right 3 are the pierced primers.
|
I see. So the piercing happens in the firing pin indentation. I notice there is a smaller and deeper indentation inside the firing pin indentation. Does your firing pin have a sharp point at the tip? If it does, it is not kosher. The tip should be a hemisphere. A sharp point can pierce a primer if the load is hot.
-TL