I wouldn't consider buying the gun if I was going to shoot BP in it. I see no advantage then. I can easily shoot MOA with a CVA BP gun at half the price, and a much lighter gun.
We can't use smokeless here in ML season, but i'm going to get one and shoot it in rifle season. Just because I like muzzleloaders, and I don't like taking the easy way.
I'm looking for a 250yd muzzleloader for rifle season. I'll use a caplock, real BP, and a PRB for ML season.
The advantage is you can shoot either in it, it has a fantastic trigger and you have a proof tested barrel. You may have a CVA that shoots MOA but I sure never have and I've never had a Knight that did either. If I shoot Blackhorn or whatever that stuff is in it I do lose a little velocity and a little less accuracy but it's still better than any other ML I've owned.