In more than one old painting frontiersmen, and natives, are seen with a spare ramrod stored in the barrel,( probably to keep the charge in place while on horse back). They had a hole cross bored through the end. Leather wangs were knotted through the hole, allowing for quick removal, by simply stepping on the wang, with your foot, and pulling the gun away. This cross bore would also serve as a cleaning device as perviously shown. although I have seen many old guns with provisions for jags and worms, I have seen just as many without.
Hungry Horse