Choosing the right RCBS shell holder is crucial for efficient and safe reloading. With a wide variety of calibers and shell types available, understanding RCBS shell holder sizes is essential for any serious reloader. This guide provides a comprehensive overview, helping you navigate the selection process and ensuring you always have the correct holder for your reloading needs.
Understanding RCBS Shell Holder Numbering System
RCBS uses a numerical system to identify shell holders, making it vital to understand how these numbers relate to specific cartridges. The numbers themselves don't directly translate to caliber, but rather correspond to a specific shell design compatible with that caliber. This means a single caliber might require multiple shell holder numbers depending on the shell's manufacturer and specific dimensions.
For instance, you'll find different RCBS shell holder numbers for various .308 Winchester cases—one for standard Winchester cases, another for Federal cases, and potentially more for others. This highlights the importance of precise identification before purchasing.
How to Identify the Correct RCBS Shell Holder Size
Identifying the correct shell holder involves a two-pronged approach:
1. Identifying Your Cartridge
The first step is straightforward: know your cartridge. This involves identifying the caliber (e.g., .223 Remington, 9mm Luger, .30-06 Springfield) and, importantly, the manufacturer of the brass cases you're using. Different manufacturers might produce cases with slightly varying dimensions, necessitating different shell holders.
2. Cross-referencing with RCBS Resources
Once you know your cartridge and brass manufacturer, you need to consult official RCBS resources. While an exhaustive list isn't readily available online in a single, easily searchable document, RCBS provides several avenues for determining the correct shell holder:
- RCBS Website: The official website is your primary resource. While they might not have a single, all-inclusive chart, their product pages often list compatible calibers and shell types for each shell holder. You might need to navigate through individual product listings to find the match.
- RCBS Catalogs: Printed RCBS catalogs (available at gun shops or directly from RCBS) are extremely helpful. These catalogs usually feature comprehensive charts correlating shell holder numbers to specific cartridges.
- Online Reloading Forums: Engaging with experienced reloaders in online forums can be invaluable. Posting details about your cartridge and brass manufacturer will often yield quick and reliable answers from knowledgeable members.
Common Mistakes to Avoid
Several common mistakes can lead to incorrect shell holder selection:
- Ignoring Manufacturer Variations: Assuming all .308 Winchester cases, for example, use the same shell holder is a frequent error.
- Relying on Incomplete Information: Trusting online sources without verifying with official RCBS documentation can lead to incorrect purchases.
- Using the Wrong Shell Holder: This can result in damage to your brass, your press, or even injury.
Conclusion: Precision is Paramount
Selecting the correct RCBS shell holder size isn't just about convenience; it's about ensuring the safety and accuracy of your reloading process. By carefully identifying your cartridge and manufacturer, and diligently consulting official RCBS resources, you can ensure that you always have the right tool for the job. Remember, precision is paramount in reloading, and choosing the appropriate shell holder is a crucial step in that process. Investing the time to select the right shell holder will safeguard your equipment and ultimately improve the quality of your ammunition.
