Lee

How about the fouling internally in the breech plug. I as you have suggested started drilling it out. But cleaning the BP real well is sort of pain. I did not realize how much the BP could become plugged until I shot BH in the Remington. I shot 15 shots and I was still getting ignition but the flash channel was pretty well plugged and it was hard stuff also.

Regular spray cans of carb cleaner or brake cleaner did not do much to loosen it. I even thought about dropping it in a bath of old fashioned parts cleaner - but then chose your easy way out - the drill.