That rifle belonged to a good friend. There's more, but the basics are..... 26" Shilen, 14" twist. Fireform load was 50.5/760/70BT@4050. Formed load 51.5/760/70BT@4150. Oehler chrono. No overpressure with either load. The guy who now owns that gun is shooting 80's @ 3800 with RL19 powder. My barrel is 30" Krieger 12" twist, same reamer.
I'm not doubting your word, not trying to start a fight, but I am doubting your chronograph's accuracy. You're claiming 200 fps faster with a smaller case and I was at a pressure level where I was only getting 4-5 loadings per case before new primers wouldn't stay in the pockets. Have you verified those readings with another chronograph?
Tom
