I bought some 30cal M80 FMJBT w/ cannelure bullets to reload. They said that the bullets were handpulled . But the bullet below the cannelure had some black glue or laquer on it. I put it a vibrator case cleaner and ran it for 3 hours but it didn't come clean. I then put "Goof-off" cleaner on it and it came off. Is it necessary to clean this off and is there a easy way. It seems to me to clean each bullet with "Goof-off" would take some time. Thanks!