Glad to hear everything is working out for you brrrrt.
Get yourself rest, you'll be surprised how well these Huntsmans can shoot.
Just make sure you clean that BH209 with standard gun cleaning solvents, not any water based cleaners. Then use a good gun oil to protect the bore. The powder is supposed to be non-corrosive and I think it is with hot primers, but any fouling left in the bore can trap moisture, and that can be trouble, even with stainless barrels. If you happen to shoot conicals with any type of water-based lube, make sure to clean as soon as possible, then oil the bore.
I really think most of the soot/fouling comes from the 209 primers, they can be dirty buggers in some rifles. The Hoppes No 9 and Montana X-treme "Cowboy Blend" both work well, I prefer the CB, but it has a stronger odor than the Hoppes.
You know, a dab of that Hoppes behind each ear just drives women wild!