I think you got some pretty good answers. As for seasoning, that is just a myth. They stopped seasoning in the mid 1800s when they started making barrels out of modern steel. In fact, toy cannot season a barrel made out of modern steel. The old iron barrels had open pores and required seasoning. This also applies to modern muzzle loaders, unless you find a builder who makes his own barrels out of iron. So, don't give it a second thought.