IWAC
Member
Or maybe even .38 Spl. +P equivalents, using small pistol primers in 357 brass. I figure 800-950 fps should cover most reasonable applications. I have HP 38, Unique, AA#5, and Universal to choose from, and 125gr. Plated and jacketed, 130, 135 jacketed and 150 and 158gr cast SWC bullets. So far, my go-to load for 150-158 gr. cast has been 5.5 gr. Unique. 860 fps from a 4" barrel. Too much published data is with barrel lengths that aren't useful, and are too long for ballpark extrapolation of muzzle velocity.