Finding the right load data for your 5.56 ammunition can feel overwhelming. With countless powder choices and bullet weights, achieving optimal accuracy and safety requires careful research and meticulous attention to detail. This guide focuses specifically on using Hodgdon H335 powder in your 5.56 reloading endeavors, providing you with the information you need to confidently develop safe and accurate loads. Remember: Always consult the latest reloading manuals from reputable manufacturers like Hodgdon before attempting any reloading. This information is for educational purposes only and should not be considered a substitute for those manuals.
Understanding Hodgdon H335
Hodgdon H335 is a popular extruded powder known for its versatility and suitability for various rifle calibers, including the 5.56 NATO/.223 Remington. Its burn rate makes it a solid choice for achieving consistent accuracy at both subsonic and supersonic velocities. H335's relatively low pressure characteristics contribute to a safer reloading experience when used correctly. However, proper attention to detail and adherence to published data is paramount.
Key Factors Affecting 5.56 Load Data with H335
Several factors influence the optimal load data for your specific setup:
- Bullet Weight: Heavier bullets generally require more powder to reach desired velocities, while lighter bullets need less. Common bullet weights for 5.56 include 55, 62, 69, and 77 grains.
- Bullet Type: Full metal jacket (FMJ), hollow point (HP), soft point (SP), and boat tail bullets all exhibit different ballistic characteristics, influencing the optimal powder charge.
- Primer Type: Small rifle primers are standard for 5.56 ammunition. The primer type doesn't drastically change the powder charge but can influence ignition consistency.
- Case Capacity: Case capacity variations can exist between different manufacturers. Using consistent brass from a single source minimizes variability.
- Rifle Barrel Twist Rate: The twist rate of your rifle barrel influences the bullet's stability, impacting the optimal velocity and therefore the powder charge. A faster twist rate might allow for the use of heavier bullets effectively.
- Environmental Conditions: Temperature and humidity can subtly affect powder burn rate and therefore pressure. Reloading manuals often provide adjustments for extreme temperature conditions.
Sample Load Data (Disclaimer: This is NOT a substitute for your reloading manual)
The following is purely illustrative and for informational purposes ONLY. Do not use this data without consulting your reloading manual. Variations exist between rifles, components, and environmental conditions.
| Bullet Weight (grains) | Bullet Type | Primer Type | H335 Powder Charge (grains) | COL (inches) | Notes |
|---|---|---|---|---|---|
| 55 | FMJ | Small Rifle | 24.0 - 25.0 | 2.260 | Start low, work up carefully. |
| 62 | FMJ | Small Rifle | 24.5 - 25.5 | 2.260 | Start low, work up carefully. |
| 69 | FMJ | Small Rifle | 25.0 - 26.0 | 2.260 | Start low, work up carefully. |
(This table is for illustrative purposes only and is not a substitute for official loading data.)
Safety First: Essential Reloading Practices
- Always wear safety glasses and hearing protection.
- Start low and work up gradually. Never exceed the maximum recommended charge listed in your reloading manual.
- Never mix powders.
- Inspect your cases and bullets carefully for defects.
- Clean your equipment regularly.
- Use a reliable reloading scale.
- Maintain a clean and organized workspace.
- Understand the signs of overpressure.
- Consult multiple sources of load data and compare.
- Keep a detailed reloading log.
Conclusion
Reloading 5.56 ammunition with H335 powder can be a rewarding experience. By understanding the key factors involved, following safe reloading practices, and meticulously consulting your reloading manuals, you can produce accurate and reliable ammunition tailored to your specific rifle and shooting needs. Remember, safety should always be your primary concern. Always double-check your work and never compromise on safety procedures. Happy reloading!
