Fire Forming 300 Weatherby brass to a 7mm STW
I know I can neck down a 375 H&H case first by necking it a 30cal then to a 7mm and then fire form it. But if I wanted to save my self a step and wanted to use 300 Weatherby brass how would that work since it has a Double Radius shoulder? I know the bullet will need to be seated in the lands but what powder and what charge would you use?
Fast, Flat, and Accurate