I shoot Blackhorn in my Encore all day and never worry about cleaning, when I tried "crudring 777" I could only get one shot and scrubbing out the crudring took so long and was so difficult that I usually gave up after 3 or 6 shots. Pyrodex is also a good powder you need to clean after several shots but at least its work able and easy to clean. 777 works for some but if the truth be told I believe it is a small percentage like maybe 30%. Those it does not work for either find something else or quit.