Ensure correct case dimensions for safety and reliability.

For maximum safety and accuracy, Lyman recommends inspecting all bottleneck cases after resizing to ensure the correct headspace is maintained. This critical dimension is best verified using a Lyman Case Length/Cavity Gauge.

The reloader simply inserts the case into the gauge to ensure it does not exceed the maximum allowable headspace or fall below the minimum allowable headspace. In addition, the gauge will detect a case that exceeds the maximum allowable case length.

Caution! Any case with excessive headspace should be destroyed immediately.

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