Mark is correct, as he describes the Sam Hawken treatment of his very late rifles. However, there are several different treatments of the moulding/panels, as evidenced in Jim Gordon's Book III, and his wonderful collection of Hawken rifles. We could nit pick your rifle to death, and it would be a good thing for those wishing to do the very best reproduction they can. Your rifle carries enough of the flavour to be a credible contemporary build, and you should be commended for that. I cannot remember in your first post if you were seeking critique, or not.
As far as building a rifle that emulates the many details that set these rifles on a lofty pedistle, far away from mediocrity, today's builder is still faced with and somewhat limited to parts that are not always right. The buttplate is an example. Many of us, Mark included, is ambitious enough to alter commercial parts to make them more appropriate. The hammer in your rifle is an example of that. The lock that Track sells has a very English styled hammer that does not climb over the fence of the standing breech as closely as it should. Some of the breech plugs available have the nipple seat too high which compounds that problem. The hammer should closely approach the fence, clear it, yet strike the nipple well down toward the centre of the bore so that the shooter is protected from powder gases and cap fragments. This is where ALL modern "Hawken" rifles, ie: T/C, Investarms, Euroarms, Navy Arms, etc, fall into the toilet. I'm getting carried away and shuffling too closely to edge of my soap box.
Here's a couple of examples of my rifles that hopefully demonstrate what I am talking about.
Enjoy your rifle Dave, and take pride in it. You've done well.
