The 5.7x28mm cartridge, known for its high velocity and flat trajectory, is increasingly popular among enthusiasts. While factory ammunition is readily available, reloading your own 5.7x28mm offers several advantages: cost savings, the ability to customize loads for specific applications, and the satisfaction of crafting your own ammunition. However, reloading this smaller cartridge requires precision and attention to detail. This guide will walk you through the process, focusing on crucial aspects for safe and successful reloading.
Getting Started: Essential Equipment and Supplies for 5.7x28mm Reloading
Before diving into the reloading process, you'll need to gather the necessary equipment and supplies. Investing in quality tools is crucial for consistent results and safety. Don't skimp on this aspect; your safety depends on it.
Essential Reloading Equipment:
- Reloading Press: A single-stage press offers precise control, ideal for beginners. Progressive presses are faster but require more experience. Choose a press compatible with 5.7x28mm sizing dies.
- Sizing Die Set: This includes a full-length sizing die and a case-length trimming tool (essential for maintaining consistent case length). Ensure the dies are specifically designed for 5.7x28mm.
- Powder Measure: A powder measure ensures consistent powder charges, preventing dangerous over- or under-charges. Choose a measure calibrated for small charges.
- Case Feeder (Optional but Recommended): A case feeder significantly speeds up the reloading process, especially for larger batches.
- Bullet Seating Die: A bullet seating die ensures proper bullet alignment and seating depth, crucial for accuracy and safety.
- Primer Seating Tool: This tool seats primers consistently and safely into the primed case.
- Scale: A digital powder scale is essential for accurate powder measurement. Calibration is key to safety.
- Case Trimmer: A case trimmer maintains consistent case length, preventing issues with chambering and pressure. Failure to trim can cause dangerous over-pressure.
- Dies: Ensure your dies are specifically designed for the 5.7x28mm cartridge. Using the wrong dies can lead to damaged cases or dangerous pressure issues.
Essential Supplies:
- 5.7x28mm Brass Cases: Source high-quality brass cases from reputable suppliers to ensure consistent performance and longevity.
- 5.7x28mm Bullets: Choose bullets appropriate for your intended use, considering weight and ballistic characteristics.
- Gunpowder: Select a gunpowder specifically recommended for the 5.7x28mm cartridge and your intended bullet weight. Consult reloading manuals for data. Improper powder selection is extremely dangerous.
- Small Rifle Primers: Use small rifle primers compatible with your reloading press and the 5.7x28mm cartridge. Using the wrong primers can lead to dangerous misfires or malfunctions.
- Lubricant: A case lubricant helps reduce friction during sizing, extending die life and preventing damage to brass. Use a lubricant specifically designed for reloading.
The Reloading Process: A Step-by-Step Guide
Reloading 5.7x28mm ammunition requires careful attention to detail at every stage. Each step is critical for safety and accurate ammunition.
Step 1: Case Preparation
- Inspect Cases: Examine each case for damage, dents, or cracks. Discard any damaged cases.
- Deburr: Remove any burrs or imperfections from the case mouth and primer pocket.
- Clean: Clean cases thoroughly to remove any residual powder or debris.
- Resize: Use the full-length sizing die to resize the cases to factory specifications. Ensure proper lubrication.
- Trim: Trim the cases to the correct length using a case trimmer. Maintaining consistent case length is crucial for safety and reliable function.
Step 2: Primer Seating
- Prime: Seat a small rifle primer into each resized case using the primer seating tool. Ensure the primers are seated firmly and evenly. Do not use excessive force.
Step 3: Powder Charging
- Charge: Carefully measure the correct powder charge for each case using a powder scale and measure. Double-check each charge to ensure accuracy and prevent overcharges. Consult reloading manuals for safe load data.
Step 4: Bullet Seating
- Seat: Use the bullet seating die to seat the bullets to the proper depth. Ensure the bullet is seated correctly and that the overall cartridge length is within factory specifications.
Step 5: Final Inspection
- Inspect: Carefully inspect each completed round for any imperfections or abnormalities. Discard any rounds that do not meet your standards.
Safety Precautions: Always Prioritize Safety
Reloading ammunition is inherently dangerous. Failure to follow proper safety procedures can lead to serious injury or death. Always:
- Consult reloading manuals: Refer to current reloading manuals for load data specific to your components. Never exceed maximum recommended loads.
- Wear safety glasses: Always wear safety glasses to protect your eyes from flying debris.
- Work in a well-ventilated area: Gunpowder dust can be harmful.
- Keep your workspace clean: Maintain a clean and organized workspace to prevent accidents.
- Never mix components: Keep your reloading components separated and organized to prevent accidental mishaps.
- Store ammunition properly: Store your reloaded ammunition in a cool, dry, and secure location.
This guide provides a comprehensive overview of 5.7x28mm ammo reloading. Remember, safe and successful reloading requires careful attention to detail, adherence to safety precautions, and continuous learning. Always consult reputable reloading manuals and resources for the most up-to-date information. Improper reloading techniques can lead to dangerous situations. Practice proper safety procedures at all times.