I have a couple of dial calipers I use for reloading, bike work and general around-the-house projects. They are Chinese made decent quality stainless steel and ran about $25 each. They are accurate and the readings are less ambiguous than any vernier, even in [racticed hands. Several of the reloading supply houses sell them under the RCBS, Lyman or other brand names but they are all the same as you can get locally.

I do know how to read a vernier and also know how to use a sliderule but see no compulsion to stay with what is basically obsolete technology or to insist others do. It's like insisting any new driver learn on a manual transmission car with no sycromesh.