RCBS Single Stage Shell Holder 31 is built from hardened steel and sized to properly align the case with the reloading die in single-stage and turret presses. It captures 0.125 inch of the case head to support proper SAAMI headspacing. The shell holder is supplied in a silver finish and intended for reloaders working with compatible calibers.
Key Specifications
- Size is 31.
- Material is hardened steel.
- Finish is silver.
- Captures 0.125 inch of the case head for proper SAAMI headspacing.
- Compatible calibers include 450×400 Express 3″, 45-75/50-95 Win, 50-70 Gov, 50-90-2.50″ Sharps Straight, 56-50 Spencer.
- Designed for use in single-stage and turret presses.
- Weight is 4 oz.
- Dimensions are 0.80 x 1.20 x 2.05.
- Quantity per pack is 1.
A compact, hardened-steel shell holder like the RCBS 31 provides reliable case alignment and consistent headspacing for dedicated reloaders and gunsmiths. Its durable construction and precise sizing make it a practical addition to a reloading bench when working with the listed historic and specialty cartridges.








