The Dillon 550B and 550C are both highly regarded reloading presses, but the 550C boasts several advancements. Upgrading your 550B to a 550C configuration can significantly enhance your reloading experience. While a complete press replacement might seem like the obvious solution, a conversion kit offers a cost-effective alternative. This guide delves into the specifics of Dillon 550B to 550C conversion kits, outlining the components, the process, and what to consider before undertaking this project.
Understanding the Differences: 550B vs. 550C
Before diving into the conversion process, let's understand the key differences between the Dillon 550B and 550C presses. These differences highlight the advantages gained by converting your older model:
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Case Activation: The 550C features an improved case activation system, resulting in smoother, more reliable case feeding. This is a significant upgrade over the 550B's system.
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Primer Feed System: The 550C's primer system often provides improved reliability and less jamming. While not always included in a conversion kit, upgrading your primer system is a worthwhile consideration.
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Powder Measure: While the powder measure itself might not be drastically different, the integration with the rest of the 550C components often leads to improved consistency.
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Overall Efficiency: The cumulative improvements result in a noticeably faster and more efficient reloading process.
Components of a Dillon 550B to 550C Conversion Kit
A typical conversion kit will not include every single part found on a new 550C. Instead, it focuses on the key components responsible for the performance enhancements. These usually include:
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New Case Activation System: This is often the core of the conversion, addressing the most significant difference between the two models.
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Updated Case Feed System Components: This might encompass springs, levers, and other parts designed to work with the new case activation mechanism.
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Potential Primer System Upgrades (Often Sold Separately): While some kits may include basic primer system components, a full upgrade might necessitate purchasing these separately.
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Instructional Materials: A reputable kit will include clear and concise instructions, detailing the conversion process.
The Conversion Process: A Step-by-Step Overview
The exact steps will vary depending on the specific conversion kit and your familiarity with the Dillon 550B. However, a general overview includes:
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Disassembly: Carefully disassemble your Dillon 550B, following the manufacturer's instructions. Proper disassembly is crucial to avoid damage and ensure a smooth conversion.
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Component Replacement: Replace the old components with the new ones from your conversion kit. Pay close attention to the instructions to ensure correct installation.
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Reassembly: Carefully reassemble the press, following the instructions provided with the kit and your Dillon 550B manual.
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Testing and Calibration: After reassembly, thoroughly test the converted press. This includes carefully checking all functions, ensuring smooth case feeding, consistent primer seating, and accurate powder dispensing. Calibration may be necessary.
Finding and Choosing a Conversion Kit
Several suppliers offer Dillon 550B to 550C conversion kits. When selecting a kit, consider:
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Reputation of the Supplier: Choose a reputable supplier with positive customer reviews.
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Kit Completeness: Carefully review the components included in the kit to ensure it addresses your needs.
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Price: Compare prices from different suppliers, but don't compromise quality for cost savings.
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Customer Support: A supplier with readily available customer support can be invaluable if you encounter issues during the conversion process.
Beyond the Kit: Further Upgrades
Even after converting your 550B, consider these additional upgrades for optimal performance:
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Improved Powder Measure: Upgrading to a more advanced powder measure can enhance consistency and accuracy.
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Electric Case Feeder: An electric case feeder can significantly speed up the reloading process.
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Case Tumbler: This keeps your brass clean and ready for reloading.
Converting your Dillon 550B to a 550C configuration offers a significant upgrade without the expense of a completely new press. By carefully following the instructions and selecting a reputable conversion kit, you can enjoy a smoother, more efficient reloading experience. Remember to prioritize safety and accuracy throughout the process.
