the problem with fixed sights is that you have to use POA to hit with whatever your load is. ie my walker hits almost a foot high at 25m with my 30gr charge, filler and 454 ball. still doesnt meant i cant get a nice group, but its not that easy aiming and a blank space on the target...
I've got a '58 Target with a .45 Colt Kirst Konverter. Had to cut the channel for the loading gate myself, but I must say.... Well worth it. It's a nice piece. I also have two straight historical models. They shoot a little high, but that is to be expected. Just right for this Confederate Partisan.