Defiantly NOT .32 S&W. 32 acp is more like it. I am not an expert on CZ pistols, by any means. I have only owned three, all vz82's. And yes, Defiantly NOT. If you are unshure about it, take it to a local gunsmith and ask him about it. The .32 S&W is a rimmed cartridge, ment for revolvers.