It has been my experience that most all muzzleloaders shoot better with a little fouling in the barrel,I lick a patch run it down the barrel and then turn it over to the dry side and run it a couple times between shots.
Finding a load that your rifle is a trail and errow event you just have to shoot enough different loads to find it.
I have spent many days and hours working on a load that I was satisfied with.
http://www.hunting-pictures.com/memb...ght&encore.jpg