Brass rod ... it's total overkill, but it's everlasting. A perfect match for a pack of Ben's gold fretwire too.
Thanks everyone for the replies. I have scanned the site looking at all the pics of various dot inlays. They all look so good, so it is hard to choose. I really liked the darker stained ones the best. I am being too much of a perfectionist I think. Anyway, thanks again. D
I'm looking at doing something similar for my first build but instead of .38 special I plan to use 9mm's and .223.
Do you just take a hack saw and cut off the casing ends? I've got a bunch of 9mm and .22 that I'd like to use.