Cool! I only shoot smokeless in mine, black powder is hard to get here in small quantities, but I can get pyrodex or triple 7, but it costs justs as much as smokeless and I would have to use 95gr of T7 instead of 43gr of 5744 in the 45-120, so I would use twice as much T7 as smokeless for the same velocity, so you know what I'm using! I'm shooting 405gr & 460gr Cast Performance WLNGC and 405gr remington soft points. With the 460gr loads, it's zeroed at 100yds, the 405gr loads shoot about 1½" higher. This is with the rear sight all the way to the bottom of it's travel.
Thanks for the info..
Tim