Tighter groups would be the purpose, I reckon, then. I'm not a target shooter shooting a target gun, will stick with the cheaper variety as it seems to work just fine for me. THANKS for the info!
Yeah, I've been using Pyrodex for decades, always clean up when I get home from the range or in the field after a weapon is fired, I'll do it that evening. One thing about the Hawkin I have that helps, I think, is it is chrome bore. I had a stainless Old Army, but the one I have now is carbon steel/blued. I soak the heck out of both guns after their soap and water scrubbing and drying with penetrating oil. I run bore butter down the Hawkins's tube rather than penetrating oil, not as easy to get out oil from the bore. I trust the butter won't foul powder quite so bad if any gets left in before loading.
It is completely impossible to get black powder down here. Oh, if you want to run to Houston, 120 miles to the SW side of town, you can get it, but there's only a couple of places there, I understand, that you can get it. I haven't bought a can of BP since about 1974 that I can recall.
I think I'll leave the 777 alone. Don't need the complication. Oh, I may buy a can to play with in the Hawkin if I walk in there flush with money sometime, don't know. I normally tamp the load down with pretty much the same pressure in the rifle. I'd like a little hands on, first hand knowledge of the stuff. If it was really clean, didn't have the corrosion problems, might be worth playing with.