You could just get a new Ruger American and have itvrebored.I've wanted a .358 Winchester bolt action for a long time. Ruger has made a few runs in the 30 years I've been looking, but they never show up when I have the cash for them. The used ones all seem to command more than I'm willing to pay for another rifle I don't need.
That is indeed a not completely hideous example based on a 98 pattern action.
Mine was using a Lee Loader to load .30-30 for my metal shop teacher in his office, at school, during school. A few students and I cast a few hundred bullets in the shop, and then I loaded hundreds of rounds for him. I don't remember the powder, but it was a stick powder, so 3031 seems likely.I got my start down the reloading rabbit hole with a second hand LEE LOADER for 30-30 and a part can of IMR 3031. Loved using that setup. I sort of collected a few more calibers, but the original 30-30 one was all I ever used. Always entertaining when a primer would go off at the kitchen table when my wife was nearby. Since that first LEE LOADER, I have gone way down the hole, but still enjoy reloading, casting, and lately powder coating.