I'm wondering if an old rolling block in in 32 rimfire can be converted to 32 Long or short centerfire? I'd even be willing to use BP to hold pressures down. Wouldn't want to sleeve the barrel and all of that, but rechambering shouldn't be too expensive. (?) Then just get a smith to weld up the old hole in the breech block and drill a new firing pin hole. (Anything can be made to sound easy.)
Anyone done this or know about it? 32 rimfire ammo is getting both expensive and hard to find. Old Western Scrounger has some for about $40 a box of 50, but that's a little high for plinking ammo.