Here's the deal. I haven't found anything that shoots better out of my Pursuit than Pyrodex Pellets. That's not to say nothing will, I just haven't found it yet, and I'm not ready for the expense needed to find it.
As for the Blackhorn, I'm trying to find a load using that powder for my Knight Vision, and then keep it as my dedicated Blackhorn shooter. I hope to never fire any other powder with that rifle. Hopefully I will find a sweet load for it soon and then I will only use it to hunt with.