The RCBS Neck Expander Plug is a replacement part intended for use with the RCBS Neck Expander Die and is sized for .338 caliber. It is designed to perform neck expansion and case mouth flaring in a single operation. The plug supports a range of dimensions and is recommended for reloading applications that include cast bullets.
Key Specifications
- The manufacturer is RCBS.
- The product is the Neck Expander Plug.
- Compatible caliber listed is .338 cal.
- Designed for multiple dimensions including .224, .227, .264, .308, .309, .310, .321, and .323.
- Intended use is as a replacement part for the RCBS Neck Expander Die.
- Primary function is to expand necks and flare case mouths in one step.
- Recommended application is reloading cast bullets.
This neck expander plug offers a straightforward solution for reloaders who want consistent neck expansion and efficient case mouth flaring. Its role as a direct replacement component for the RCBS Neck Expander Die makes it a practical choice for shops and handloaders focused on reliable, repeatable case preparation.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




