I'll consider anything. Ideally I'd like to sleeve or replace the barrel with a cartridge with something that resembles a target load that is somewhat available...32-20, 25-35, 25-20, 32-40. Can't shoot 30-30 or 38-55 as they are too long. The 25-35 works because the neck allows more room for the cartridge to fit in. I'm not that fond of rook rifles as a target rifle, but I must confess, they are confusing to me. Were a means of pest control...kind of like a shotgun rifle?
Carl