Looks like a 100 yard tack driver. A local bunch of black powder shooters know as the Florida Frountiersmen challenged the different police departments in the area to a fun shoot off a few years ago. I think the LEO were able to use modern firearms with open sights while the Frountiersmen used strictly  black powder muzzle loaders. The frountiersmen smoked the LEO's so bad they never had a rematch. Don't forget to buy a ball puller along with the powder, patches and caps.