Working on a Bison rifle. It is a Remington Rolling Block. It is a #5 I believe. It is not the black powder model and has the small firing pin. It has a Shilen barrel that Karl Kampfeld made into an octagon barrel. I'm using Vaver adjustable aperture peep sights. I had to build both front and rear sight bases. I have a piece of Roger Vardy's nice Australian "English" walnut. Evan Koch will whittle the stock out. Pictures below are of the semifinished metal work. I think I will use Turnbull to finish the metal.

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I really like the Vaver sights as you can screw about 6 different size inserts into both or either of the front and rear sights. A wide variety of hole sizes in them.