Powder coating lead cast bullets for .308 caliber rifles offers several advantages, including improved accuracy, reduced leading, and enhanced durability. This comprehensive guide explores the process, benefits, and considerations involved in powder coating your own .308 lead cast bullets.
Why Powder Coat .308 Lead Cast Bullets?
Many reloaders choose to powder coat their .308 lead cast bullets for a variety of reasons:
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Reduced Leading: Lead fouling in the barrel is a common problem with lead bullets. Powder coating creates a hard, protective barrier that significantly minimizes leading, extending barrel life and maintaining accuracy.
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Improved Accuracy: The smooth, consistent surface of a powder-coated bullet promotes better engagement with the rifling, leading to improved accuracy and tighter groups.
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Enhanced Durability: Powder coating adds a layer of protection against deformation and damage during loading and firing, resulting in more reliable performance.
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Increased Bullet Hardness: The coating adds to the overall hardness of the bullet, making it less susceptible to deformation during impact.
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Cost-Effectiveness: While there's an initial investment in equipment, powder coating can be a cost-effective method in the long run, especially for high-volume reloaders.
The Powder Coating Process for .308 Lead Cast Bullets
The process involves several key steps:
1. Bullet Preparation:
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Cleaning: Ensure your cast bullets are clean and free of any grease or debris. A thorough cleaning is crucial for proper adhesion of the powder coat.
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Deburring: Remove any flash or imperfections from the bullets. A smooth surface ensures a uniform coating.
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Drying: Completely dry the bullets before proceeding. Residual moisture can prevent proper adhesion.
2. Powder Coating Application:
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Equipment: You'll need a powder coating system, including a powder gun, a grounded oven, and a suitable powder. Many hobbyist-level systems are available.
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Powder Selection: Choose a powder specifically designed for bullets. Different powders offer varying levels of hardness, lubricity, and temperature resistance.
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Application: Apply a thin, even coat of powder to the bullets. Avoid excessive build-up, which can lead to imperfections.
3. Curing:
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Oven Temperature: Cure the powder coating in a controlled oven at the manufacturer's recommended temperature. Improper curing can result in a weak or brittle coating.
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Time: Follow the manufacturer's instructions for curing time. Insufficient curing can compromise the coating's integrity.
4. Post-Curing Inspection:
- Visual Inspection: Once cured, inspect the bullets for any defects. Discard any bullets with imperfections.
Considerations and Safety Precautions
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Ventilation: Powder coating generates fumes, so adequate ventilation is crucial. Work in a well-ventilated area or use a respirator.
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Safety Equipment: Wear appropriate safety equipment, including eye protection, gloves, and a respirator, throughout the entire process.
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Temperature Control: Precise temperature control is crucial for successful powder coating. Use an oven with a reliable thermostat.
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Powder Storage: Store powder in a cool, dry place away from ignition sources.
Conclusion
Powder coating .308 lead cast bullets is a rewarding process for reloaders seeking to improve accuracy, reduce leading, and enhance durability. By carefully following the steps outlined and prioritizing safety, you can achieve excellent results and enjoy the benefits of powder-coated ammunition. Remember to always consult the instructions provided by your powder coating equipment and powder manufacturer. This guide provides a starting point; further research and practice will enhance your proficiency.
