During headspace adjustment on the M2HB, which component is used?

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Multiple Choice

During headspace adjustment on the M2HB, which component is used?

Explanation:
Headspace is the clearance between the bolt face and the chamber area that must be within tight tolerances for safe operation. To set or verify this on the M2HB, you use a headspace gauge to measure that distance and compare it to the specified limits. The gauge directly assesses the internal clearance that determines proper locking and firing. The other tools aren’t designed to measure this internal dimension: a stop is a component limit, a torque wrench measures applied torque, and a caliper mainly measures external dimensions. So the gauge is the appropriate tool for headspace adjustment.

Headspace is the clearance between the bolt face and the chamber area that must be within tight tolerances for safe operation. To set or verify this on the M2HB, you use a headspace gauge to measure that distance and compare it to the specified limits. The gauge directly assesses the internal clearance that determines proper locking and firing. The other tools aren’t designed to measure this internal dimension: a stop is a component limit, a torque wrench measures applied torque, and a caliper mainly measures external dimensions. So the gauge is the appropriate tool for headspace adjustment.

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