Last time I looked at Dixie they still carried the kit to make your own 32 (41 and 44 too) rimfire shells from 22s and the appropriate brass (part of the kit I believe). Also there was a south american place making 32 rim fire for a while, but they can be too hot for a pistol that should shoot black powder. I have a 32 rim fire, J.P Lower, made during the civil war infringing on Smith and Wesson patents. Been in the family since ~1882 when my Great Uncle aquired it. Toyed with the idea of getting some rounds for it, but figured keep it as is.