Solid Aluminum Loading Blocks built to my specifications. I been begging RCBS to make their loading blocks like they used to, with 80 holes instead of 50 like they do now. But no dice. Anyway someone turned me on to this place on a FaceBook Reloading Group. They normally have 50 and 100 hole blocks in any caliber you want. So I asked them if they would make 80 hole blocks in .40 and 9mm. And this is finished product. Pretty sweet huh?