I have this in a DC mould and I know this is a huge longshot but I'm looking for the zinc washers this design requires. This was a Harvey design that cast a zinc washer around the mid-section of the boolit as a type of scraper to prevent leading build up. This wasn't a gas check, it was hollow in the center, I'm sure somewhee there are thousands of these laying around and noone know what in the heck they were used for!