Any ideas which GD it was in? Mine go back to 1974 and it's not in any of them that I recall...
tac
It's not a Corbin set (that much I can remember) the second link is nothing but molds, nothing to do with swaging
Sorry I don't know the book it was in other than it was a book about black powder
"Men occasionally stumble on the truth, but most of them pick themselves up and hurry off as if nothing had happened" Winston Churchill http://planetairgun.com/index.php