It's not really incorrect weight. There were 74 cases left out of my big group, and 50 of those weighed within 0.5 grains of each other, but they were light. At the other end are cases that are a lot heavier than all the other cases...26 to be exact. I save them for setting dies up, setting the trimming tools, then when I get ready to work my shooting brass all the tools and dies are already set.