For reloaders running a single-stage or turret setup, the RCBS Shell Holder #27, .357 Sig/.40 S&W from RCBS delivers the exact case-head fit RCBS shell holders are known for. RCBS catalogs this as shell holder #27 (part no. 9227), sized for .357 Sig, .40 S&W, and several other cartridges that share the same case-head diameter. Machined from hardened steel, it locks the cartridge case square to the ram so the sizing, expanding, and seating dies all meet the case on the same axis, stroke after stroke. It is a simple, small part, but a mismatched or worn shell holder is one of the most common causes of crooked cases and inconsistent headspace at the reloading bench.

Key Specifications

• Precision shell holder engineered by RCBS specifically for single-stage and turret press reloading setups.
• Hardened steel construction resists the repeated ram pressure of full-length sizing and seating without deforming.
• Case-head capture of 0.125 inch positions the cartridge case correctly against the shell-holder shoulder for proper SAAMI headspacing.
• Fits .357 Sig and .40 S&W sharing this shell holder’s specific case-head diameter.
• Compatible with single-stage and turret presses the same shell holder body works across both press styles.
• Sold individually one shell holder per package, ready to drop straight into the press ram.
• Ships at 0.0375 lb light enough that a full set of shell holders takes up almost no room in a die cabinet.
• Snap-in shell-holder base seats into RCBS, and most other, standard press ram slots without tools.
• Shell holder #27 designation cross-references directly to RCBS’s shell-holder numbering system for quick reordering.

Frequently Asked Questions

Will this shell holder work in a press from another brand? Yes. RCBS shell holders use the industry-standard base dimension, so they fit RCBS, and most other single-stage and turret presses that accept a standard shell holder.

What does the shell holder actually do? It clamps the case head and holds the cartridge square to the die body during sizing, expanding, seating, and crimping, so every stage of the reload lines up on the same axis.

Does one shell holder really cover more than one cartridge? Yes, when cartridges share the same case-head and rim diameter, RCBS assigns them to the same numbered shell holder rather than making a separate part for each.

Buy the RCBS Shell Holder #27, .357 Sig/.40 S&W

Round out your die set with the correct shell holder and stop fighting misaligned cases reload after reload. Order the RCBS Shell Holder #27, .357 Sig/.40 S&W from our Lubbock, Texas gun shop for fast, reliable shipping straight to your reloading bench. Shop the full shellholders and die accessories lineup for the rest of your press setup.