The Lyman Case Head Space Gauge for .40 Smith & Wesson is designed to verify that your cases fall within safe headspace tolerances. Simply insert the case into the gauge to ensure it does not exceed the maximum or fall below the minimum allowable headspace—the gauge will identify cases which exceed the maximum. Any case found with excessive headspace should be destroyed immediately.
Specifications:
Caliber: .40 Smith & Wesson
Dimensions: 1.40 X 2.50 X 4.35
Height: 1.4000
Width: 2.5000
Length: 4.3500
Material: Metal
Type: Case Length/Head Space Gauge
