I can't really answer your question directly since I don't even own a 32 caliber revolver... but, I do cast and reload 32 S&W Long/32 H&R Magnum...soon maybe 32-20 Win. The old 32-20 mold (Lyman#311008) drops a beautiful bullet that can be used in the 32L as well as the 32-20 and many 30 calibers (as a light plinker load). Lyman Cast Bullet Handbook (3rd Edition) lists 32L loads with velocities ranging from 528-1102fps.
http://www.lymanproducts.com/lyman/b...php?entryID=54
I know the 32L is somewhat obscure (read that, pricier and less available), similarly with the 38 S&W, so reloading makes ammo much more affordable and attainable. The availability of bullets for 32 caliber is pretty decent, as well.