These precision machined, self-aligning neck bushings are designed for use with RCBS gold medal match series reloading dies, allowing users to finely control neck tension on bullets, which decreases brass work hardening and results in longer case life and superior shot accuracy. To take full advantage of these benefits, only brass with consistent neck wall thickness should be used. Reloaders can determine the ideal bushing by measuring the outside neck diameter of a loaded round and subtracting 0.002 - 0.003 inches or by calculating twice the neck wall thickness, adding the bullet diameter, then subtracting 0.001 inches. RCBS recommends maintaining a set of bushings that span one to two sizes above and below the calculated ideal for flexibility.

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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).