Rum River - I would follow Stimpy's suggestion and get a correct set of dies - it will save you many, many headaches. As for loading data - the cor-bon people are famous for telling folks they have designed special powders for their bottleneck cartridges when in reality you can do just as well if not better with regular ol' cannister powder.
As for practice loads - if you are not using cast bullets, you could probably use any of the 71-73 gn ball slugs available for the 32 acp. Those 60 gn slugs are probably not easy to find or cheap, either. I would begin with powder charges halfway twixt the 32 acp and the 380. Actually, a charge for the 380 with a 60 gn or 71-73 gn bullet would most likely carry less pressure than the same charge under a 95 gn 380 slug.
I might be tempted to find one a barrel in the 32naa for one of my 380s, just to shoot the thing and see how it performs. HTH and good luck. Mikey.
