YIKES!!!!
If I did that the rod for the Bess would weigh more than the gun!!!!! The 3/8" rod with a jag and guide work great......
I should have added that 3/8" is usually as big as you need to go to get a good grip. I try to give people credit for at least a modicum of common sense when posting. However, I guess someone might take it literally and try to use a 3/4" rod on a big bore. You never know.