CF primer. Blackhorn is smokeless powder detuned. Bullets are CF designed, or pistol CF bullets.
Colorado had a sidelock, black powder, and a PRB in mind when they opened to ML season.
They never wanted a ML to be taking 300yd shots. I'm not guessing at this. I've had long conversations with them.
You can try and justify the performance of inlines all you want, but the spirit of muzzleloader hunting has been lost.
I still have interest in traditional muzzleloaders, and BP shoots, but i've lost it for hunting.