32 rimfire has the same dimensions as 32 Colt, which like rimfire is in short & long variety. 32 long or short Colt will fit in 32 S&W but 32 S&W will not fit in 32 Colt as it is slightly larger diameter. There are 32 Colt casings available that have been drilled out in the base to hold nail gun cartridges for reloading
that will work in the rimfires.