Gumboman;
Ok, this is where this subject will take off and go the 9+ pages with everybody chiming in. I have a .50 cal. rifle with a 1 in 72" Montana cut rifled barrel. I tried everything imaginable trying to get it to shoot. I knew it would prefer fat charges, because of the slow twist, but nothing I did, would stop it from blowing patches. I ran out of patching for the gun at an open to the public event, where the public was being encouraged to experience shooting a flintlock. I decided to use the patching from my sons .45 caplock, which was so loose in the flinter that I had a hard time cutting patches at the muzzle without sliding the patch out from under the ball. A novice blackpowder shooter wanted to try a shot at a 200 yrd. gong with the rifle. I told him it would need a full charge for the shot, which was 90 grns. of 3F, as apposed to the 50 grns. we had been shooting. I told him where to hold and he drilled the gong. I tried the loose charge a couple more times and then went out and picked up the patches. They were so perfect that I could have reused them. I started using light patching made from linen, and pre-cut instead of trying to cut them at the muzzle, and the old flinter really came into its own. Give it a try. I know there will be a crowd here that will want you to load a bore size ball with a piece of tent canvas, and magic whiz bang lube, using a hydraulic short starter, but try this first. I wouldn't have tried it if I hadn't run out of patching material, but I love the easy loading, and not having to rebarrel the guns, is good too.
Hungry Horse