Primer Blow Out with NO Over Pressure Signs?

[XC700116]

When brass flows into the ejector you are already pushing it. Primer cratering is not a very reliable indication of pressure.

Yes, my LR rig will crater primers with very light loads and soft primer cups.


Also from what you said about tying to measure the OAL to the lands, I'd try loading a bunch, or just further seating the loads you have to 2.780 to make sure you're not jamming at all. If the pressure signs go away, you have your answer, but continue with caution.