- Joined
- Jan 26, 2015
- Messages
- 1,504
Have you inspected your bore? Is it possible that something is growing (like rust) between range trips? It might cause higher pressure, especially if your near max and at higher temps, and get "knocked down/smoothed out after the first shot? Maybe a burr that's holding copper that you don't get cleaned out that corrodes with high humidity? Grasping at straws here, baffled.