I have a trapdoor Springfield in 38-55 and very much enjoy it. Switched to a buffington sight this year which made it easier to shoot. With my eyes the gun is not exceptionally accurate but that is me and not the gun. I use it as a loaner at our annual turkey shoots. Some day soon I will have to try it with black powder. Being lazy, I have not wanted to bother cleaning it right away if I shot black. Perhaps worth mentioning that the problem that I had with the previous rear sight was that it was from an original trapdoor and it adjusted by sliding the V portion up and down and across. I found the sight kept getting shifted. That is not a problem with the buffington but for 100 yard shooting, I have to have the "ladder" up and use the peep sight at the bottom. With the ladder down, the V seems to be set for around 200 yards
cheers mooncoon