[rc]

The .32 acp is the same diameter as a 32 S&W, 32 Long and .32 mag. The thing that is lacking is as large a rim so the extractor doesn't work as well with the ACPs. It is discouraged in .32 Long guns because the ACP is higher pressure than 32 S&W or 32 long. In the magnum however, it is a viable option. I've done it in an SP101. I've heard in the single action it doesn't matter at all because they have the ejector rod. Just expect having some extraction problems in your S&W. Bring a pencil! In a last ditch effort this is viable, but if you can find the correct ammo, that would be preferred. The best way to get .32 mag ammo is to reload! Few places carry it regularly in my area. Even with today's prices you can load 50 rounds of .32 mag for under $12. I would say about $2 for primers, $7 for bullets and $2 or less for powder. Starline sells brass directly to the public and you can find better deals on bullets if you look for bulk magtech. You can also use .32 acp dies to load the .32 mag but the roll crimp revolver dies are better for bullets with a crimp groove. Oh, and if you reload for a strong .32 mag revolver you can up performance considerably from published data. rc