I’m in the process of refinishing the stock on my Uberti 1873.  I’m hoping for something darker than the natural tones.  I have some Minwax dark walnut stain I tend to like but I’m not sure how well it will jive with the reddish tone of the wood.  There’s really no hidden spot for me to test it.  Has anyone else used a darker stain to refinish their stock?