"If you want a 30 cal that's different, the 30-40 Ackley would be a good one, easy to do on a modern 30-30 barrel, being rimmed, there's no problem with setting the barrel back which can be overcome real easy any way, see handloading for improved chamberings in the FAQs, I have a few improved chambered Handis that work fine."
I am correct in thinking that you can go from a 30-30 to a 30-30ai or a 30-40 to a 30-40ai without having to
compensate for the the "crush fit" that un-rimmed cartridges need? In other words if I ream a handy in a rimmed cartridge to AI, I can still shoot factory ammo?