The 32 Winchester Special cartridge was created by them in 1901 to use in their Model 94s chambered in that cartridge. It was one of the few bottlenecks that was designed to also be reloaded ny owners using cast bullets and black powder. Easily done if you owned one of the Ideal tong tools that also had the mold or you vote could also buy a Winchester bullet mold to cast with. If anyone tries reloading the Winchester 32 Spl. with cast and BP, just remember to use a BP lube to keep the fouling soft and like all BP cartridge loads, it needs to be a compressed load with no air space in the casing.
Just as an added note - many of the old Ideal reloading tong will be double stamped - one for the Winchester name for the cartridge (WCF - Winchester Center Fire) and one for Marlin's name for the same cartridge - for the above reasons already stated.