Mine is a Chambers 40 caliber Issac Haines Rifle. I couldn't find anything but .395 Round Balls and molds so that's what I shoot. Patching is .015 to .018 Pillow Ticking Lubed with Bumbling Bear Grease from October Country. I usually shoot 40 grains for Target work. Surprisingly, an experiment showed that 60 had the same point of impact and would probably work for deer. 40 is the minimum caliber here in Oregon.
Good Luck!
Walt
Good Luck!
Walt