No, I'm actually using the No-GO gages. Go gages check the minimum diameter allowed for a specific measurement, no-go gages check the maximum diameter for a given measurement, so if you're shooting for 2 thou of neck tension, you'd want it exactly at .222(for .223 Rem), which would be your no-go gage.
I suppose in the end, I doubt it matters that much, but since I have pin gages at the thousandth and half thousandth mark, I went with no-go for all my measurements. For .223 I have from .2205-.2230
