The MEC Shell Checker (MEC part no. 8486) is a stainless steel tool with precision-machined holes clearly labeled GO or NO GO, letting novice and seasoned shotshell reloaders alike confirm that a reloaded shell will chamber properly. It handles 10, 12, 16, 20, and 28 gauge as well as .410 bore, covering nearly every shotshell gauge a reloader is likely to run through a press. Because it must pass strict quality-control checks to carry the MEC name, this shell checker gives a reliable pass/fail read on both roundness and overall size before a shell ever goes into the field.

Key Specifications

• Covers 10, 12, 16, 20, and 28 gauge, plus .410 bore.
• Constructed from durable stainless steel.
• Precision-machined holes are clearly labeled GO or NO GO.
• Tests both roundness and size of reloaded shells.
• Ships at approximately 0.2 lb.

Frequently Asked Questions

What gauges does this checker cover? 10, 12, 16, 20, and 28 gauge, plus .410 bore.

What does GO or NO GO mean on this tool? It indicates whether a reloaded shell passes the size and roundness check for that hole, telling the reloader if the shell will chamber properly.

Buy the MEC Shell Checker

Confirm every reloaded shotshell chambers properly before you head afield. Order from Mayville Engineering Co./MEC through our case preparation lineup, with fast shipping from our Lubbock, Texas gun shop.