.32WCF or 32-20 is somewhat popular with the cowboy shooters so there should be some around. Win. & Rem. have both loaded this caliber recently and probably still do.
WARNING!
Watch out for older boxes of .32-20 H.V. rifle loads. They are only intended for the Win. M92 rifle and should never be used in any handgun. The boxes are clearly marked but if you find old, loose ammo, there's no way to tell for sure what you have.
The modern, low pressure factory loads are usually found with either a bare lead or copper-washed (Win. Lubaloy) bullet.
The best plan is to get a set of dies or a hand tool and load your own.
BTW, there is no other cartridge that can be substituted for the .32-20.
