That is a good looking finish. Do you remember how many coats you had to use? If I can get a finish that good ill be happy. Mine will be on a Pietta 1851 repro.
I don't specifically remember how many applications, but it was several, in between each application I polished lightly with new, fine steel wool. I had much more time in metal prep than actually bluing, it took quite a few hours total.
I can't seem to lay my hands on a bottle of 44/40 right now, but I think it is supposed to cure under a coat of oil when you finish.