To the best of my knowledge, the .32-20 Winchester and the .32 WCF are the same cartridge. The oddity in names is similar to the .30-30 Winchester and the .30 WCF, which are two names for the same cartridge. The .32-20 Winchester/.32WCF was originally designed for use in rifles. Colt later chambered it in their SAA revolver. It was originally loaded w/ 20 grains of black powder... thus the .32-20 description.

The .32 S&W Long is an entirely different cartridge. It was originally designed for use in S&W revolvers using a plain 98 gr. lead bullet. It is not interchangeable with the Winchester round. HTH. Sincerely. brucev.

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