Michael396
Regardless of the powder a sabot load that is to tight or to loose does not usually shoot well.
As far as the BH is concerned it is not for everybody and Pyrodex is definitely a good powder, i use it in all my traditional and have for all the years since it came out.
Pay attention to Sabotloader's post it may improve your situation; get the JB bore paste put it on some good ticking patches and polish that barrel. [It only polishes it does not cut] give the barrel a hundred full length strokes and scrub the barrel clean it will help.
BH shows improved performance with heavy bullets it is a progressive burning powder and requires a certain amount of pressure to get maximum performance to give best results.
The biggest actual benefits are gotten by people who understand smokeless powder and by people who do not want to fight crud ring or swab between shots.
I like it and use it in my inlines, I like pyrodex in my traditionals, I tried 777 and BH in them and consider it not to smart to have to fool with wads while hunting in order to be able to use a particular powder in a particular gun. One of the reasons I like BH is because I do not need to carry cleaning or swabbing stuff while hunting.
We have deer ]3 to 5 tags] bear and unlimited boar and sometimes turkey open at the same time during muzzleloading season; I have several times needed to shoot several times with out much fooling around and on a drive who knows.