Gauging a dial caliper for reloading (9mm)

[Doubs]

As I've explained in another thread, my loads for my 9mm Lugers are fine... in my Lugers. OTOH, my newer 9mm handguns have different chambers and will jam with the Luger loads. The bullets engage the lands too early and the bullets must be seated deeper. The same problem exists with .30 Luger loads for my Lugers and my newer .30 Luger pistols... a Benelli B80 and a Browning High Power.