MEC Shotshell Checker for all Gauge Diameters
Now you can easily measure the precision of your reloaded shells. Precision machined holes, labeled GO and NO GO test for size and roundness. Durable stainless steel. 10, 12, 16, 20, and 28 gauge, plus .410 bore.
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.