A shooter in the past from my range used a brass rod. Then forgot it was in the barrel only 6" long.^^^ This right here! it is much more dense than Derlin or wood and works much better.
going with a short rod has its advantages over a longer one, but you had better make sure you don't leave it in the bore before firing the next shot. I has been done and the person I know of did not live to tell the story.I use a small brass rod cut to about 6" in length. They are sold at Ace hardware stores for a few bucks.
A shooter in the past from my range used a brass rod. Then forgot it was in the barrel only 6" long.
Lost an eye on the next shot. Better to have something very long U cannot avoid its notice.