I am very happy with these digital calipers. I love precision reloading and these calipers are great for what I use them for. I can zero them to get the exact dimensions of the rifle's chamber and animate the bullets I need for the correct bullet seat depth. This is something I couldn't easily do with a set of calipers without a calculator. The .0005 reading on the gauge is a big plus as it allows you to set tighter tolerances for the bullet in the case. I would highly recommend these calipers to anyone involved in precision shooting.