I'm fairly new to black powder and before I went to the range to test fire my new rifle, I thought I'd check with some of you folks with more experience. Last week I picked up a pretty nice tiger stripe Kentucky Rifle at the LGS. It was in a rack with all black rifles and was a rose among thorns visually. It has a pinned 42 inch barrel with what seems like a 1 in 60 (plus?) twist rate, 58 inches overall length and a nice full slender stock with plain (iron?) hardware. "Primitive" sights. I'll get some pix when I recharge my camera battery. Don't think it's an older kit gun, but who knows? There isn't a mark anywhere on it except a name on the top "Ron Poe". Maker? Owner? Nothing online I could find about that name. I'm cleaning up some surface rust and dirt in the stock behind the lock. Looks like it was originally a "flinter" and got changed, somewhere along the line, to percussion. The nipple was solid rust, so I'll add a new one, maybe a musket nipple to match the one on my .50 Cal Hawken style so I don't have to keep 2 different caps organized I finally slugged the barrel this AM and found the bore is .454 x .464. I'm thinking a .440 ball with .010 patch? Sound about right? Or is there a better combination of ball and patch for a .45? I'll probably test fire it with 50 grains of FF and work my way up for accuracy.