Description Lyman Case Length/Headspace Gage 308 Winchester. The Lyman Case Length Headspace Gage is perfect for reloaders looking to achieve the highest degree of safety and accuracy. Lyman recommends that all cases be inspected after resizing to ensure that the proper headspace dimension is maintained. Simply insert the case into the gage to check that it does not exceed the maximum or fall below the minimum allowable headspace. If the case exceed the maximum allowable case length the case mouth will exceed the length of the gage. Lyman Item # 7832321 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to – www.P65Warnings.ca.gov.
