The Dillon 550 is a popular progressive reloading press, known for its speed and efficiency. However, understanding the various components and their impact on your reloading process, particularly conversion charts, is crucial for safe and accurate ammunition production. This guide provides a comprehensive overview of Dillon 550 conversion charts and how to effectively use them. We'll cover different cartridge types, case preparation, and troubleshooting common issues.
Understanding the Importance of Conversion Charts
A Dillon 550 conversion chart acts as a blueprint, guiding you through the setup and adjustment of your press for different calibers. These charts outline the necessary dies, shell plate, and other components needed for each specific cartridge. They're indispensable for ensuring proper case feeding, sizing, powder dispensing, and bullet seating. Without a correctly configured setup, you risk inconsistent ammunition, potentially leading to dangerous malfunctions.
Key Components of a Dillon 550 Conversion
Before diving into specific conversion charts, it's essential to understand the major components involved:
- Shell Plate: The heart of the conversion, this determines the case's orientation and positioning throughout the reloading process. Different shell plates are necessary for various calibers.
- Dies: These tools perform the crucial steps of sizing, de-priming, powder charging, bullet seating, and crimping. Each step requires a specific die, and their adjustments are critical for consistent results.
- Powder Measure: Accurate powder dispensing is paramount for safety and performance. Proper calibration and adjustment of your powder measure are vital.
- Case Feeder: (If using one) This significantly boosts the speed and efficiency of the reloading process. Proper setup and adjustment are crucial for reliable case feeding.
Finding and Using Dillon 550 Conversion Charts
Dillon Precision, Inc. provides detailed instructions and manuals with their presses. These manuals often include comprehensive conversion charts. You can find these charts on their official website (though we don't provide direct links here, as instructed). Many online forums and reloading communities also share their own conversion charts and setup guides. However, always prioritize information from the official Dillon source.
Reading a Conversion Chart
A typical Dillon 550 conversion chart will include:
- Caliber: The specific cartridge the chart pertains to (e.g., 9mm Luger, .223 Remington, .308 Winchester).
- Shell Plate Number: The correct shell plate required for that caliber.
- Die Adjustments: Detailed information on the proper settings for each die, often including measurements and visual guides.
- Powder Measure Settings: The recommended settings for your powder measure, usually in grains per charge. Remember to always double-check your powder charges independently to ensure safety.
- Other Components: Any other specific components or adjustments needed for a successful conversion.
Troubleshooting Common Conversion Issues
Even with accurate charts, issues can arise. Here are some common problems and their potential solutions:
- Case Jams: This is often caused by incorrect shell plate selection or die adjustments. Double-check your chart and ensure proper die seating.
- Inconsistent Powder Charges: This can stem from a poorly calibrated powder measure or incorrect die settings. Carefully review your powder measure calibration and die adjustments.
- Bullet Seating Issues: Incorrect bullet seating depth can be due to improper die adjustments or bullet inconsistencies. Verify your die settings and ensure your bullets are consistent.
Safety First: A Crucial Reminder
Reloading ammunition carries inherent risks. Always prioritize safety:
- Double-check all your powder charges: Never rely solely on your powder measure. Weigh each charge individually on a scale.
- Wear appropriate safety gear: Eye protection is mandatory, and hearing protection is recommended.
- Work in a clean and organized workspace: This minimizes the risk of accidents.
- Consult with experienced reloaders: If you are new to reloading, seek guidance from experienced individuals.
This comprehensive guide provides a foundational understanding of Dillon 550 conversion charts. Remember to consult the official Dillon Precision resources and prioritize safety in all your reloading endeavors. Happy reloading!
