When I lived up in Ketchikan, Alaska I spent a month one Winter building a 50 Cal. CVA Hawken kit. It turned out very well, I think. It took me forever to file and sand the brass fittings, etc. I still have and use the Birchwood stain from the kit and that was over 25 years ago!
With round ball and pyrodex (and if I could control my breathing well enough) that rifle would shoot into an inch and a half at 75 yards. And that was from a standing rest (leaning against a 4x4 post that supported the roof over the benches at our range. Iron sights...75 yards...1 1/2"! Consistently. I was always amazed.
I'd wait to pull out the rifle til some nimrod with a brand new 300 Mag would come strutting up. I'd whip it out (so to speak) and start in, and pretty soon the fool would be challenging me to a target. Sure, I'd say, but let's make things just a more equal! And before you know it they'd be shooting at 200 yards, trying for 1 1/2", factory ammo of course. I'd be shooting at my standard. Here's the kicker...it would be for two targets and you had to finish the first before going to number two. That meant he had to shoot one inch and a half 'warm up' target before he could go to the 'contest target'. Oh...and I'd give 'em as many warm up shots as they wanted. (snicker) The more, the better! (snicker) After a few boxes of their shoulder smackin' ammo they'd be flinching so hard their groups would be about the size of my tool shed. Kinda mean, but funny.
I've only ever owned hunting rifles, nothing just for target or varmints, etc. And I think that rifle would out shoot any of 'em.