If you try Black Powder, you will never go back to Pyrodex. That is why. We also don't talk about IN-@#$*! here. This is a traditional BP muzzle loading firearm sight. I am told there are other sites for in-@#$@$ action type readers.
Seriously, you will get much better performance and accuracy shooting black powder over any of the substitute powders. And, if you shoot round ball, as GOD intended ML rifles to shoot, it will wear out your shoulder less, you will do more shooting, more practice with your gun, learn to be a better shot, and learn you gun before hunting season comes along, you load a powder that will absorb moisture faster than Black Powder, and with a bullet you have never shot more than a few times, because its weight causes the gun to recoil so badly you develope a quick flinch off the bench. You don't need a conical bullet to kill Deer! Rond Ball have been killing deer for centuries. A .50 caliber round ball weights about 180 grains, heavier than many of the .357 magnum bullets used today. within 100 yards, which is about as far as most shooters can use open sights, in questionable lighting conditions, can use with any accuracy, that round ball will penetrate both sides of a deer standing broadsides to the shooter. How dead is dead? But, go ahead, use those inferior powders, and use those heavy slugs. Get a good sized flinch, that will affect every rifle and shotgun you shoot to the point that you give up and find a fishing rod to take care of your leisure time.
On the other hand, if you really want to learn how to enjoy traditional muzzle loading hunting, and shooting, hang around here, and learn much.
:v