That's all I do when working up a load between shots. Military patch in my mouth to wet it good, run it down to near the breech on the end of a jag, in and out into the fouling ring in the load seat area carefully so as to not get the jag stuck in the breech. Once the fouling ring is cleared, bring it out and turn the patch over and in and out a couple more times, then run a clean, dry patch down a couple times on each side, pop a cap to make sure the breech is clear of any fouling that may have been pushed in to the breech, then reload. I'm shootin 295gr lead Powerbelts and 105gr 3f T7 in my .50 black diamond. with wingless musket cap ignition.