RCBS Single Stage Shell Holder #20 Size

The RCBS Single Stage Shell Holder #20 Size is a precision reloading component engineered to secure and properly align cartridge cases during the reloading process. Built from hardened steel, this shell holder is designed for use with RCBS single-stage and turret presses, ensuring consistent case positioning relative to the reloading die for accurate ammunition assembly.

The #20 shell holder accommodates specific case head sizes and captures 0.125 inch of the case head, which is critical for maintaining proper SAAMI headspacing specifications. This precision fit prevents case misalignment that could compromise cartridge concentricity, primer seating depth, or bullet seating consistency. The hardened steel construction withstands repeated pressing cycles without deformation, which is essential for producing safe, uniform ammunition across production runs.

Reloaders working with single-stage presses rely on shell holders to maintain die alignment and cartridge support throughout the reloading stroke. The #20 size is designated for particular case families; matching the correct holder to your case head diameter is fundamental to press operation and safety. This component integrates with standard RCBS press tooling and is essential equipment for anyone assembling precision rifle or pistol ammunition at the bench.

RCBS shell holders are industry standard reloading accessories recognized for durability and dimensional accuracy. Proper case holding during reloading directly influences final cartridge quality, making shell holder selection an important part of the reloading setup.