OI, just checking… but are the gauges labeled? Always ask the most basic question first. So don’t be offended. But, any chance you have them swapped? Next, do you have a Vernier Caliper/Micrometer? Can you measure both? The “NO GO” Gauge should be approx .004” longer than the “GO” Gauge. And lastly, you can try setting headspace so the bolt closes just a tad snug on the GO Gauge. Just so you barely feel it at the bottom of travel. Even a slightly short NoGo Gauge will not chamber in this method, as headspace will be around .002” or less.
All that done, and if the Gauges are correct & you are still having issue, all I can say is something is being done incorrectly.
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