mwezell
Mike Ezell
I wouldn't think LT30 would increase the starting pressure but change the slope of the pressure curve. Thicker brass, stronger brass, steeper lead angle, harder bullet material I can see increasing the starting pressure.
Thanks Joe. I think you are spot on.
I probably should have asked if faster powders might overcome the lower starting pressure of the R type rifling, in turn, addressing the potential loss of accuracy discussed here. Reason being, the pressure would come earlier as compared with 133, for example.