RCBS Single Stage Shell Holder #40 Size

The RCBS Single Stage Shell Holder #40 Size is a precision reloading component designed to securely position rifle and pistol cases during the single-stage and turret press reloading process. Built from hardened steel, this shell holder ensures proper case alignment with reloading dies and maintains critical SAAMI headspacing standards essential for safe, consistent ammunition production.

The #40 size is caliber-specific, engineered to fit particular case head dimensions and capture exactly 0.125 inch of the case head for accurate, repeatable headspacing. This precision fit prevents case movement during the pressing stroke, eliminating dimensional variance that can lead to pressure inconsistencies or firearm safety issues. Hardened steel construction withstands thousands of reloading cycles without deformation, making this a one-time investment for handloaders who process ammunition regularly.

Reloaders working with single-stage presses—the standard for precision rifle ammunition, match-grade handgun loads, and small-batch custom cartridges—depend on shell holders to maintain case geometry throughout the resizing and forming process. The RCBS #40 is compatible with standard single-stage presses and turret press configurations, making it a foundational component for any handloader focused on accuracy and consistency. Whether you're developing rifle loads for long-range competition or producing reliable defensive handgun ammunition, proper case holding is non-negotiable for both safety and performance.