Choosing the right powder bushing for your Hornady powder measure is crucial for consistent and accurate reloading. This guide will help you understand Hornady's powder bushing chart, how to use it effectively, and troubleshoot common issues. We'll delve into the intricacies of powder dispensing, ensuring you achieve the precision necessary for safe and reliable ammunition.
Understanding the Hornady Powder Bushing Chart
The Hornady powder bushing chart is a vital tool for any reloader using a Hornady powder measure. This chart correlates specific bushings with various powder types and throws (the amount of powder dispensed per charge). It's not just a simple table; understanding how to interpret it is key to successful reloading.
The chart itself usually presents data organized by:
- Bushing Number: This is the unique identifier for each bushing.
- Powder Type: The chart lists specific powders, often with their manufacturer's name. Knowing your powder's exact name is essential.
- Powder Throw (in grains): This is the approximate amount of powder each bushing will dispense. This value is highly dependent on the powder type and the specific Hornady powder measure model.
Finding Your Bushing: A Step-by-Step Process
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Identify Your Powder: Double-check the label on your powder container to ensure you have the exact name. Even slight variations in powder type can significantly affect the throw.
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Determine Your Desired Charge Weight: This is the amount of powder you need per cartridge, as determined by your reloading manual. This value is critical for safety and accuracy.
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Locate Your Powder on the Chart: Find the row corresponding to your specific powder type.
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Find the Closest Bushing: Find the bushing number that provides a throw weight closest to your desired charge weight. It's usually advisable to select a bushing that throws slightly less than your desired charge weight. You can then fine-tune your charge weight using your scale.
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Verify with a Scale: Always verify your powder throw using a reliable powder scale. Never rely solely on the chart. Variations in powder flow and environmental conditions can impact the actual throw.
Common Issues and Troubleshooting
While the Hornady bushing chart is highly accurate, certain factors can influence powder throw:
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Powder Condition: Powder that's clumped or excessively humid will not flow consistently, affecting the accuracy of your powder measure.
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Bushing Wear: Over time, bushings can wear down, affecting their accuracy. Replacing worn bushings is crucial for maintaining consistency.
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Measure Type: The chart may be specific to a particular Hornady powder measure model (e.g., Hornady Lock-N-Load). Ensure you are using the chart for your exact model.
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Environmental Conditions: Temperature and humidity can slightly affect powder flow.
Beyond the Chart: Safe Reloading Practices
Remember, the Hornady powder bushing chart is a tool to assist in consistent powder dispensing. It is not a substitute for responsible reloading practices:
- Always double-check your powder charges with a scale. This is the single most crucial step for safe reloading.
- Consult your reloading manual for the correct powder charge for your specific cartridge and bullet combination.
- Never exceed the maximum charge weight listed in your reloading manual.
- Regularly clean and maintain your powder measure.
- Use appropriate safety glasses and hearing protection.
By following these guidelines and carefully using the Hornady powder bushing chart, you can achieve accurate and consistent reloading results, leading to safer and more effective ammunition. Remember, safety and precision are paramount in the world of reloading.
