RCBS 9231 Single Stage Shell Holder #31, Multi-Caliber, Steel, 4 oz.

The RCBS 9231 single stage shell holder is the foundation of consistent case alignment during reloading. This hardened steel shell holder is engineered to position your case precisely in relation to your reloading die—whether you're working a single-stage press or a turret setup. Proper case alignment isn't just about technique; it's about repeatability, safety, and the longevity of your dies. The #31 holder is designed for specific case heads and grips 0.125 inch of the case head to maintain proper SAAMI headspacing, the industry standard that ensures your ammunition functions reliably in your firearm.

If you're setting up a reloading bench or expanding your shell holder collection, you need reliable, no-nonsense tools. RCBS has been the standard in reloading since 1957, and their single-stage shell holders reflect decades of precision manufacturing. The hardened steel construction withstands repeated loading cycles without wear or drift, so your setup stays true from the first round to the thousandth.

At just 4 ounces, it's a compact but essential component that slots into your press's shell holder station. Whether you're loading rifle, pistol, or specialty cartridges that match this holder's specifications, the RCBS 9231 delivers the rock-solid case positioning that separates careful reloaders from careless ones.

Key Features

• Hardened steel construction for durability and long-term accuracy
• Precisely aligns case head with reloading die in single-stage and turret presses
• Grips 0.125 inch of case head for proper SAAMI headspacing
• Designed for specific case head dimensions (model #31)
• Compact, reliable component for consistent ammunition assembly

Specifications

Frequently Asked Questions

What presses is the RCBS 9231 shell holder compatible with?

The RCBS 9231 is designed for single-stage and turret reloading presses that accept standard RCBS shell holder stations. Check your press documentation to confirm it uses standard RCBS shell holder compatibility.

What calibers does the #31 shell holder fit?

The #31 holder is designed for specific case heads. Consult RCBS's compatibility chart or your reloading manual to verify which cartridges match the #31 designation, as shell holders are sized to particular case head dimensions.

Why is proper headspacing important in reloading?

Proper headspacing ensures your ammunition chambers correctly and fires safely in your firearm. The RCBS shell holder maintains SAAMI headspacing by gripping exactly 0.125 inch of the case head, keeping the case positioned consistently relative to the die.

Is this shell holder used for both rifle and pistol reloading?

Shell holders are caliber and case-head-specific. The #31 will work for whatever cartridge it's designed to fit, but you'll need to verify compatibility with your specific caliber before purchase.