09-22-2021, 03:25 PM
Im not convinced headswipe is automatically a sign of overpressure, though overpressure often has headswipes.
But it could just mean the plunger has a strong spring and the bolt is rotating more quickly due to higher pressure of the warmer load. Fast rotation due to increasing port pressure, doesn't necessarily mean overpressure.
Flattened primers and extrusion into extractor and plunger area is another matter! That takes closer to 60k+ psi levels
But it could just mean the plunger has a strong spring and the bolt is rotating more quickly due to higher pressure of the warmer load. Fast rotation due to increasing port pressure, doesn't necessarily mean overpressure.
Flattened primers and extrusion into extractor and plunger area is another matter! That takes closer to 60k+ psi levels