Ac--My barrel is 31 in. I'm using real slow DB Ball powders, up to 320grains on 730 gr lead calculated out at 35k. Used a medium speed DB ball on sabot and calculated same peak pressure.Rob's loads are lower also as he used ball. His action will take any pressure that the brass could hold, even high test loads.I haven't had to resize the bottom of the 4 cases I have used for many shots each for our testing.One has been fired 30 times.Ed.
