If your reloading bench does not have this absolutely essential tool, your reloads will suffer and will make your hunting and/or competitive match turn into one very long and miserable day!
There is only one very critical way to know if your reloads are within SAMI spec and that is to drop each-and-every round into a case gauge. As this gauge covers all my reloads in 9mm, .40 (or 10mm) and .45. I don't have to worry about loosing multiple gauges on my bench.
Simply stated: Don't reload without it!!!!

Excelente produto, prático e muito eficiente para que se destina, Doulble Alpha Academy está de parabéns !!!

Awesome product. Glad I bought this. I load 9mm, 40 cal and 45acp. I use this to prepare for matches and keep with range bag too. Highly recommend.

Great gauge for testing small amounts of ammo. If you want to test larger quantities, you better invest in the DAA Golden 20-Pocket Gauge