Thank you!
I shot it today with 350's and 010 and 015 patching.
The 010's gave pretty inconsistent results on paper, so I went to the 015's. Huge change.
Groups at 25 yards were nearly all touching, probably not covering much more than 1/2-2/3 of a square inch. That was with charges ranging from 20-35 gr of 3F.
I went out to 50, and groups are about 1-1.5". I need to drift the sight a tad to get it spot on (it hits about 2" to the left for me), but I shot the last two shots of the day off hand at 50 yards. They landed within 1" of each other. One was literally right where I wanted the ball to hit, the other was about 1" lower. For offhand at 50, that'll work.
I've got a rebounding frizzen on this one, so a little work to do there. I've read some suggestions for tweaking the flint angle that I want to try before goofing around with the frizzen spring. It does beat the flint up pretty good. I started with the flint that was in the gun and was pretty worn. Got maybe 10-12 on that and it stopped sparking. Installed a new flint, and it was beat up fast, had to knap it once and take a good bit of material off to get it going again, but then it kept going. Probably put 20-30 shots on that flint, but if I get 10 more, I'll be lucky. It's worn pretty hard.
Didn't have a chance to get after the bushy tails today, but I'll get on it ASAP.
I also want to try 020 patching and see what comes of it. I didn't have to clean at all with the charges and patching I was shooting today. I recovered 6-10 patches of the 015 thickness. They're not shredded or burned, but they're not pristine. The edges got thinned/fringed pretty good. I want to try 020's and see if the patches look better and if it tightens the groups any more. It cleaned up pretty quickly when I got home, which is always nice.
I shot both Hoppes 9BP and spit patches. The rifle didn't seem to care, shot both the same. I took my hunting patch lube (for deer hunting) along, but forgot to try it.
I completely blanked when I was at Lewisburg about getting a horn for this rifle. D'oh. Need to get that or a flask for my bag. I'd be ok with either. At 35gr per shot, it doesn't tear through powder.