Lyman Pro ammo checkers are precisely machined from corrosion-resistant stainless steel to meet minimum SAAMI chamber tolerances. Each Pro ammo checker is clearly labeled with the corresponding caliber. To use, simply insert your loaded cartridge into the gauge; if it fits, it will chamber in your firearm. This serves as an essential final check for competitive shooters or anyone seeking to ensure smooth and trouble-free chambering of reloaded ammunition.

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).