Thanks guys. It's still a work in progress but looks very promising. Once I get my hands on a test shell it'll try it again with a few different types of paint. I think with a shell that's had paint on it for years it might need a little time to work in. That's why I did the longer soak with them covered in chemistry. I'd think a soft brush to get in hard to get places would help a bit. Overall I'm pleased with the results so far.
How you gonna do this with the wrap still on the drum ? You can`t drop the drum into a container and soak it !!