I’m using ADG and am getting the exact same neck thickness.Neck wall measures .0016 to .00165 on three random cases. Seems on par with other manufacturers. If you have comparisons on Norma brass please post . For reference on shoulder closer to datum this brass is closer to .532 . FYI give five guys a set on calipers and you will get 5 different measurements. I measured with dial and digital calipers and starett neck mic . Hope this helps everyone out .