I will cast some bullets next week after Christmas. I assume you mean John Millar in the Yukon. I am still not sure what it is. I would think it would be rather light, as it is smaller than it appears. It has 4 square indents in the mold right at the base. You can see these in the pictures. I have some cerrosafe and will use that this week to get exact dimensions. Will post pictures of the bullet and measurements this week. Thanks for your help.