I got some range time, early Sunday am, after a rain here, the local temp was 81o at 4:00am. I got to the property by 4:30am and was up and ready to shoot, well before the Sun was beaming through the clouds. After the first few loads, with .010", .015", and .018", all of which were packaged lubed wads, I found the best groups at 50 yards, using the last ones. The powder charge of 40 grns. of 3F, an over powder wad of felt, from my BP Colts, a .018" patch and a .433" RB, the groups were 2" at that range. I didn't have a bench to shoot from, but did fire from my Truck window with a shop towel as a rest under my hand. Easy to load, even with a dirty bore. I was cleaning the bore with Ballistol and running a dry patch afterwards.
I shot about 40 rnds total and couldn't be more satisfied with this rifle.
Next time out, I'll try 2-.010" patches and see how they group, to see whether I need to buy some .020" patches. My guess is that it'll be too snug to load in the field, when Hunting.
It was a good test and an exercise in simplicity, as I brought nothing else that I would have in the field when Hunting. No Range Rod, no extra parts, no other stuff I'd have in the truck or at the Camp. I had my Hunting Pouch, Horn and extra ball, patches, and only stuff, you'd carry in your pouch. I used the tools in the pouch, a Measure and the Rifles Ram Rod.
Jack Rabbits and Cotton Tails, with this load, and next Fall, I'll work up a load for larger game.
Thank you, guys, for all the good ideas and time to give me some starting points.