My sole 38/357 wadcutter mould is the longer/heavier version of Ben's featured design here, Lyman #358432. Mine casts 160 grain bullets in 92/6/2, and that thicker base on the heavier version (depicted in Ben's photo, Post #5) does a fine job of withstanding 357 Magnum pressures and grouping accurately at 1200 FPS+.
Lyman made this design in 32 caliber as well, #3123492. It is a 92 grain casting in 92/62, and works well in all intensities of 32 caliber revolvers--including the 30 Carbine BH, 32/20s, and the 7.62 x 38R Nagant. In this last caliber, that rebated nose portion gets seated flush with the case mouth, then a size die sets a long "profile crimp" to just above the front drive band. Perfect for that weird Nagant revolver gas-seal system.