I like Speer 158 gr LSWC in my 38 Spl +P loadings - they pretty much duplicate the velocities (confirmed through chronograph) of factory Rem/Win/Fed +P 158 gr LHP loadings. Speer do not lead like the factory stuff and are extremely accurate; more accurate than cast bullets at similar velocities.

My 38-44 loads used 150 gr to 158 gr cast bullets (approx. 1,100 fps from 6 inch).