Use this Case length/Headspace Gauge to check that your loaded ammunition has the correct headspace and that the cases are of the correct length. These are important for the safety of the shooter and the valuable rifles that we use. Simply insert the case into the gauge to insure that it does not exceed the maximum or fall below the minimum allowable headspace. In addition, the gauge will identify a case which exceeds the maximum allowable case length .
Caution:Any case found with excessive headspace should be destroyed immediately.
