MEC Shotshell Checker

MEC Shotshell Checker

MEC Shotshell Checker. The MEC Shotshell checker is a useful tool to ensure reloaded shells will chamber properly. The checker has precision machined holes labeled “GO” and “NO GO” to test for size and roundness. This durable, stainless steel tool accommodates 10, 12, 16, 20, 28 gauges and 410 bore hulls.