The .308 Winchester, a stalwart in the world of hunting and precision shooting, demands precise ammunition for optimal performance. Choosing the right powder is crucial, and CFE 223 has emerged as a popular option for reloaders. This guide delves into the intricacies of using CFE 223 powder for .308 Winchester loads, offering detailed information and safety precautions. Disclaimer: Always consult your reloading manual and follow its instructions meticulously. The data provided here is for informational purposes only and should not be considered a substitute for proper reloading education and safety practices.
Understanding CFE 223 Powder
CFE 223 is a relatively new extruded powder known for its versatility and clean burning characteristics. Its moderate burning rate makes it suitable for a range of cartridges, including the .308 Winchester, though it's primarily associated with smaller calibers. Its popularity stems from its consistent performance and reduced fouling, leading to cleaner barrels and improved accuracy.
CFE 223 Load Data for .308 Winchester: Considerations
While CFE 223 can be used in .308 Winchester, it's crucial to understand its limitations. Its slower burn rate compared to powders traditionally used in .308 might require more careful load development to achieve optimal results. Factors such as bullet weight, case capacity, and environmental conditions significantly influence load performance.
Important Considerations:
- Bullet Weight: Heavier bullets generally require more powder than lighter ones. Start with manufacturer-recommended minimum loads for your chosen bullet weight and gradually work up, carefully observing pressure signs.
- Case Capacity: Variations in case capacity, even within the same brand, can affect pressure. Consistent sizing and trimming are essential.
- Primer Type: The type of primer (small rifle, large rifle) will influence ignition characteristics. Stick to the primer type specified in your reloading manual.
- Environmental Conditions: Temperature and humidity can affect powder performance. Adjust your loads accordingly based on prevailing conditions.
Sample Load Data (Illustrative Purposes Only)
This data is purely illustrative and should NOT be used without consulting your reloading manual and conducting your own load development. Always start at the minimum load and work up gradually, carefully monitoring pressure. Never exceed the maximum listed load.
Note: This data is hypothetical and for demonstration only. Actual data may vary.
| Bullet Weight (grains) | Bullet Type | Powder (grains) | Primer | COL (inches) | Notes |
|---|---|---|---|---|---|
| 150 | FMJ | 42.0 | SR | 2.800 | Start Load – Gradually increase |
| 150 | FMJ | 43.5 | SR | 2.800 | Maximum Load – Do not exceed |
| 168 | FMJBT | 41.0 | SR | 2.810 | Start Load – Gradually increase |
| 168 | FMJBT | 42.5 | SR | 2.810 | Maximum Load – Do not exceed |
SR: Small Rifle Primer
COL: Cartridge Overall Length
Safety First: Reloading Precautions
Reloading ammunition is inherently dangerous. Improper techniques can lead to catastrophic equipment failure and serious injury. Always adhere to these safety precautions:
- Wear Safety Glasses: Always wear eye protection while reloading.
- Proper Ventilation: Work in a well-ventilated area.
- Cleanliness: Keep your reloading area clean and organized.
- Single-Stage Loading: It's generally recommended to start with a single-stage press for greater control and safety.
- Consistent Techniques: Maintain consistency in your loading procedures.
- Regularly Inspect Equipment: Check your equipment for wear and tear regularly.
- Never Exceed Maximum Loads: Always stay below the maximum recommended loads.
- Accurate Measurement: Precise powder measurement is crucial. Use a scale capable of measuring to the tenth of a grain.
- Visual Inspection: Carefully inspect your loaded rounds for any anomalies before use.
Conclusion
Using CFE 223 for .308 Winchester loads is possible, but it requires meticulous attention to detail, extensive research, and careful load development. Prioritize safety and always refer to your reloading manual as the ultimate guide. Remember that the load data presented here is for illustrative purposes only and should never be used without thorough research and testing within your specific setup and equipment. The information provided here does not replace the need for proper reloading training and education. Always consult with experienced reloaders for guidance if needed.
