Choosing the right shell holder is crucial for smooth, efficient reloading. RCBS, a respected name in reloading equipment, uses a numbering system for its shell holders that can sometimes be confusing for beginners. This guide will demystify RCBS shell holder numbers, helping you select the correct one for your cartridge and ensuring safe and successful reloading.
Understanding RCBS Shell Holder Numbering
RCBS shell holders are numbered to correspond with specific cartridge cases. The number doesn't directly translate to a specific caliber; instead, it reflects the dimensions of the shell's head and the mechanism required to hold it securely during the reloading process. This means that different cartridges might share the same shell holder number if their head dimensions are similar. This is unlike some other manufacturers who might use a more caliber-specific numbering system.
Finding Your RCBS Shell Holder Number
The most reliable method to determine the correct RCBS shell holder number is to consult the RCBS catalog or their official website. Their resources provide a comprehensive list matching shell holder numbers to specific cartridges.
However, if you don't have immediate access to these resources, here's a breakdown of how to approach the problem:
1. Identify Your Cartridge:
First, accurately identify the cartridge you're reloading. This includes the caliber (e.g., .308 Winchester, 9mm Luger) and any variations (e.g., .308 Winchester vs. 7.62x51mm NATO, while similar, might require different shell holders). Pay close attention to the specifics.
2. Check Existing Shell Holders (If Applicable):
If you already own some RCBS shell holders, examine them closely. The number is usually clearly stamped or printed on the shell holder itself. This can give you a starting point for comparison.
3. Online Resources and Forums:
While not an official source, online reloading forums and communities are valuable resources. Search for discussions related to your specific cartridge and RCBS shell holders. Experienced reloaders often share their knowledge and experiences, which can assist in identifying the correct number. However, always cross-reference this information with official RCBS documentation.
4. Contact RCBS Directly:
If you're still uncertain, contacting RCBS customer service directly is the best course of action. They can provide definitive answers based on your cartridge information.
Common RCBS Shell Holder Numbers and Corresponding Cartridges (Partial List - Consult Official Resources for Completeness):
This is a small sample and should not be considered exhaustive. Always refer to the official RCBS documentation for accurate pairings:
- Number 8: Often used for various pistol cartridges.
- Number 9: Frequently used for rifle cartridges.
- Number 10: Another common number for rifle cartridges.
- Number 4: This might be used for shotgun shells.
Remember, the numbers above are examples, and there are many more. The sheer variety of cartridges means a comprehensive list would be extensive.
Troubleshooting Shell Holder Issues
- Improper Shell Seating: If your shell isn't seating correctly in the shell holder, double-check you have the correct number. A wrong number can lead to improper seating and potential safety hazards.
- Shell Holder Damage: Inspect your shell holder for any damage, such as bending or cracks, which can affect its function. Replace damaged shell holders immediately.
- Case Head Issues: If you're experiencing problems, examine the case head of your cartridge for any irregularities that might be interfering with seating.
Reloading is a precise process. Using the correct RCBS shell holder number is critical for ensuring safe and successful reloading. Always prioritize accuracy and safety when handling firearms and reloading components. This guide provides valuable information, but always refer to the manufacturer's instructions and consult experienced reloaders for guidance when needed.
