Got some pyrodex P yesterday and a box of speer .530 roundballs. Took it out to 75 yards and got everything dialed in with 90 grains pyrodex p. Had to adjust my sights all the way up to get it where i wanted it. Had to knock the sight over to the right just a hair. After getting everything on sight with 8 shots i swabbed the barrel, took one shot at 75 yards and hit the right edge on the orange dot, loaded #2 shot " after i swabbed: and took the shot and it went into the hole same! Swabbed the rifle again and took the target out to 100 yards and my first shot was 5" high which didnt seem right so i swabbed and let the barrel cool down and reloaded. The next shot hit the left lower corner of the orange dot. After that i was damn happy. I wanted to see how it would do with a dirty bore @ 100, so i went and took another shot and it hit 1/4" low from the Two shots i took at 75 yards! After that i saw no need no fire any more shots. I think she's on and ready for hunting season. At 75 yards, before i moved the sights, 4 shots measured just a hair over 1" About 2" groups @ 100 yards. It can only get better once i switch to 100% pure blackpowder.