Original Gewehr 1888 and Lee 8mm Karabiner
I have purchased a numbers matching Steyr 1888 Commission Rifle with the original contour barrel, S marked, and it slugged out to .321. I also just purchased a Lee Karabiner 8mm mold. This dropped boolits in the 240 grain range, sized to .323. These are powder coated and gas checked as well.
Looking at some posts from the past, I see a wide range of rifle type powders being used, from IMR4350 all the way to 3031. In old Lyman manuals I also see that for a 214 grain boolit they mention 30-40 grains of W748. I'm trying to formulate a load that would be target type for 100-200 yards. Powders I have are W748, W760, IMR4350 and IMR4895. Any recommendations from the experts here? Thanks!