"Anti seize is applied to the barrel threads. The action and lug are threaded into place with the ""go"" gauge in the chamber. Once the action is tight against the gauge, feeler gauges are used to see how much deeper the chamber needs to be cut. The reamer stop is then adjusted to half of this depth and process repeated until the ""go"" gauge fits. When the ""go"" gauge fits, a ""no-go"" gauge is then used to verify the chamber hasn't been cut too deep."
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