I've just got into muzzleloading. I have picked up a T/C hawken .50 and a new englander .50. My barrels a very clean. My buddy has have a T/C hawken .54 for years. Last time we were out the rifle wouldn't fire. I took it home. used a brush with warm water. Then some hopps solvent. Back to warm water. I can't run a patch and have it come out perfectly clean. Should i expect some black on my patches no matter how much I clean?