7mm STW (Shooting Times Westerner) Case Length Gauge Custom over-run.
This item is made to SAAMI specs.
WARNING: This product may contain steel alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. For more information, go to www.P65Warnings.ca.gov. To prevent exposure, do not alter the product by welding, grinding, etc.