danosrs, the HP-38 will work fine and is based on the same chemistry as W-231 and a lot of folks use 231, I'm just not one of 'em. Some think it's the same powder, but a glance at a burn rate chart will show you the difference. In this application with the choices of Blue Dot and HP-38, I'd load target type loads with the HP-38 and only hotter +P type defense loads with Blue Dot and WSPM or CCI-550 magnum small pistol primers. By all means though use what you have until you're ready to buy something else. You may like what you get with HP-38.
