welll im a seasoned hunter and gunsman, i recently purchased a new cva inline blackpowder rifle. i took it out and shot about 8 rounds threw it 100grns of pyrodex powder and 225grn sabots. i took it home to clean it with TC original bp none oil barrel cleaner, i cleaned the barrel polished the gun and put it bak in the cabinet. next day i came to the gun room to check everything and large amounts of some kind of corrosion, ive never had a bp gun or centerfire rifle do this. i believe its the solvent. any ideas as to why or what caused it post a reply. thanks 1shot
