Fortunately Oregon got ahead of the innovations of muzzle loaders and has ruled out in-lines unless they have open (exposed to the elements) ignition of flint or percussion cap only, loose powder (no pelleted powder, loose subs OK), no scopes (irons only), and all lead projectiles (no sabots or plastic bullet parts). When I see these hunt shows with some guy with pelleted powder, covered shotgun primed scoped in-lines I feel sad. They might as well just call it a "single shot rifle hunt" and let guys with their Sharps, rolling/falling blocks, & trapdoors have a go at it too. That is not a primitive hunt. Just a single shot hunt. I have all kinds of respect for the rock lock guys. So, the big 58s are only "obsolete" if your state allows modern designed firearms in their "muzzleloader seasons". Here in Orygun it is just perfect. I have 4 different 58s.