Fearn, for the most part, I agree with Ed in that they are probably inert. That being said, I won't go putting a lit fuse down my Rev War grenado powder hole any time soon. Just read a terrible story about another collector killed trying to saw a Dahlgren shell in half. Probably inactive...but why take chances!
Peter, I would also love to see your items whenever you get the chance to post them. Thanks!
-Mark