RE: Head space gauge
I jumped on the bandwagon to with the Hornady Headspace thing and learned a few things about my die and expander. I would bump the shoulder back -.002 and when the expander ball was pulled through the neckand some would read+.002 or more. Meaning the expander ball was pulling the shoulderout past beforeI sized it. I would resize it again andafter the second time it would be bumbed back to-.002.This gauge let me set the shoulder back equally on each case.