Brass for the 32 special can be made from 30/30,38/55 or 375win The 30/30 and 375win can be changed to32 special by running it through the 32 die.The 375 win. cases are a bit heavier and have slightly less powder capacity.Load data in the Lyman and Hornady manuals can be used .Also Hodgdon put out an annual edition in magazine form that has a variety of powders and also lists the pressures.I load for my 32 specials and have a favorite load of 34.5 gr.of H-4895 with either a Hornady 170 gr. or a Remington core-lokt.I hope this is helpful.Let me know how you make out. Later, Jeff Taylor.