If you want to keep up with the times, buy a scoped bolt action centerfire. If you want the experience of hunting with a flintlock, buy a GPR and shoot patched round balls.
Here's a nickel's worth of free advice on the Lyman - get tapered wedges OR take a hammer & punch to the barrel underlug tennons and pinch 'em just enough to grip the stock wedges. Otherwise, you will never be able to get equal tension on both wedges and one will fall out.