How would a WoodsRunner have been finished historically, in terms of barrel and lock color?
A rifle could have been left in the white or polished bright, which would develop a patina over time unless cared for immaculately, and that patina look is popular today and can be simulated with Kibler's Jax's-brand products. Charcoal bluing is another historical option, where polished steel parts are heated to around 900 degrees in the presence of charcoal to produce a deep bluish color similar to rust bluing, though it is complicated. Temper bluing, heating parts to around 600 degrees for a bright blue color, is a less durable but attractive option that was likely used on some long rifles too.