Sorry for the delay but I took Stringbean (the 45 cal longrifle)out to play this past weekend. I used the WWF to clean the bore of the rifle....plug flash,pour an amount down the bore swih back and forth then dry the bore, works good without over cleaning the bore.I used nothing this time but an older Goex superfine fff black powder .I could get seven to eight shots before getting a resistance in pushing the PRB down but never a failure to seat from to much crud. I have ordered some Old Eynsford powder to try also.