Your are right about the barrel. I was using a 0.648 and a 0.15 patch and running the ramrod against a tree to get it down the barrel. Dixies recomendations are for a 0.65 ball and a 0.015 patch, good luck getting that down the barrel. My 0.065s are tight with a lubed paper cartridge. I am going to try switching to a 0.010 patch as I picked up a package of the wonder lubed and the 0.648s . I also want to try 0.648s in the lubed paper cartridge. I have had decent results with 20 pound cotton paper lubed with the larger ball but I shave a little paper on the way in. I picked the 20lbs paper up for nitrated Sharps cartridges and it seems to be durable and absorbe and handle the lube really well.
Bruce
Bruce