Actually, I got the gun back and reassembled it on Friday. It looks fine this time. I hope to shoot it after Christmas when it warms up just a little. Fed ex got it all taken care of, even if it took a total of 2 months. The bore diameter is 1.325", the balls are 1.308" The 3" diameter patches I made are too thick at .020. I need to get something about .008" thick. Any ideas of what to try??