38/357 is an attractive alternative but you have to think ahead. Pistol type calibers I think will become much more regulated in the future. An older obsolete cartridge might fly under the radar. 25-20 is a modest, but fun round, based off the 32-20, the 218 bee was the small bore version. I would pick a low pressure cartridge with plenty of cheap brass and a good selection of bullets to load. .38 and 9mm seem alternatives but again I worry about the connection to pistols cartridges and what the future will hold.
