For your info, Pyrodex is the most corrosive of all powders, more so than regular black.
Cleaning; I use boiling water with a few drops of dawn dish soap in it.
Process; Be Carful, use a funnel to pour it through the barrel when wiping use gloves or rags to keep from getting burned swab the barrel with patches until clean wipe out the barrel while still warm with a good synthetic gun oil. Swab out the oil with an alcohol patch and some dry patches before loading.