Understanding Hodgdon H335 Powder
Powder Characteristics
The world of precision shooting and the satisfying craft of handloading offer a unique blend of challenge and reward. For those venturing into the realm of reloading ammunition, the 5.56x45mm NATO cartridge, often interchangeably referred to as the .223 Remington, stands as a cornerstone of the sport. Its widespread popularity, from competitive target shooting to personal defense, stems from its versatility, manageable recoil, and cost-effectiveness when reloading is done correctly. This article serves as a guide to help you navigate the specifics of reloading this cartridge, focusing on the use of Hodgdon H335 powder, aiming to provide data, tips, and promote the safe and responsible practice of handloading. We’ll explore how to achieve optimal results, emphasizing accuracy and overall performance.
Understanding the nuances of reloading, especially with the popular 5.56 cartridge, is a journey best undertaken with safety as the unwavering priority. Before delving into specifics, it is imperative to acknowledge that reloading ammunition presents inherent risks. Improper practices can lead to serious injury or damage to both the firearm and the reloader. This guide provides information and is meant to assist, but it does not substitute the necessity of independent research and the strict adherence to all safety protocols.
One of the most frequently used powders for reloading the 5.56 cartridge is Hodgdon H335. This spherical powder enjoys a widespread appeal due to its favorable characteristics and performance. Understanding the properties of H335 powder is critical for achieving consistent and safe loads.
This powder is noted for its medium burn rate, placing it in a range that is very well-suited for the 5.56 cartridge. This allows for efficient combustion, contributing to reliable velocities and good accuracy potential. The spherical shape of H335 contributes to its excellent metering characteristics, ensuring that the powder can measure consistently during the loading process, a key element in producing precise loads. This consistent metering minimizes variations in powder charges, which in turn aids in achieving greater shot-to-shot consistency.
Furthermore, H335 is known for its consistency across a wide range of temperatures. This stability is a boon for reloaders as it minimizes the impact of weather changes on the performance of the ammunition. As weather shifts occur the accuracy of a load that is affected by temperature variation can also shift. This is not to say temperature has no impact on H335, just that its impact tends to be lessened due to the powder’s construction.
Compared to other powders used for the 5.56 such as BL-C(2), Varget, and others, H335 often finds a sweet spot for reloaders. Its burn rate and performance characteristics, in many cases, are what provide the ability to find accuracy and efficiency in their loads. The versatility of H335 makes it an effective choice across a variety of bullet weights and cartridge applications.
Safety First: Reloading Precautions
Safety Equipment and Practices
Safety considerations take precedence over all else when reloading ammunition. Every aspect of the reloading process, from selecting components to assembling the final round, demands meticulous attention to detail and unwavering adherence to established safety practices.
The equipment chosen for reloading should be of the highest quality, in order to provide a stable environment for precise measurements. Using equipment such as a quality reloading press, precise scales, accurate bullet seating dies, and consistent case trimmers are important for producing safe and accurate ammunition. Using substandard equipment increases the potential for errors, which can result in dangerous conditions.
Before embarking on any reloading activity, it’s absolutely critical to equip yourself with the appropriate safety gear. Safety glasses, specifically designed to withstand the impact of projectiles or debris, are a non-negotiable requirement. Gloves, offering protection from potential contaminants and promoting a more secure grip on components, are also highly recommended. Ear protection, in the form of earplugs or earmuffs, is essential to protect your hearing from the noise generated during the reloading and firing processes.
The immediate area where you will be working needs to be a clean, well-lit space. There needs to be ample ventilation. Avoid static electricity. Never smoke or use anything that produces a flame, as any errant powder, or primer, can be set off.
Inspect every single brass casing that will be reloaded. Check the case for any signs of damage, such as cracks, dents, or bulges. Discard any cases that show any sign of imperfection. Make sure all components are clean, dry, and properly stored.
Never exceed the maximum load data published by reputable sources. Overloading ammunition is one of the primary causes of reloading-related accidents. Start with the minimum recommended load and work your way up, carefully monitoring for any signs of excessive pressure.
Double-check all measurements throughout the reloading process. This applies to the powder charge weight, overall cartridge length, and other critical dimensions. A small deviation in any of these areas can have a significant impact on safety and performance.
Never mix powders. Using the wrong powder, or inadvertently mixing powders, can lead to unpredictable pressures and potential firearm damage.
Properly store all powder and primers in a cool, dry place, away from any sources of ignition. Clearly label all containers and keep them out of the reach of children.
If you find that your ammunition is getting old, or you have suspect ammunition, dispose of it in a safe manner, as indicated by your local laws and ordinances.
Load Data for 5.56 Using H335
Load Data Information
The foundation of any successful and safe reloading endeavor lies in the use of reliable load data. Always consult multiple authoritative sources, such as reloading manuals published by powder and bullet manufacturers and reputable reloading manuals.
It cannot be overstated that the information below is provided for informational purposes only. Always verify the data with multiple sources before attempting to load ammunition. Start with the minimum recommended loads and carefully observe for any signs of pressure.
Here is data compiled from various sources, that may assist in your reloading efforts. Remember this is for your information, and does not replace the need for independent investigation.
When selecting the right components for reloading, and understanding the importance of how each part interacts with the others, is a skill that is critical to the overall process. This is also a great place to build confidence.
Bullet Weight and Type: 55-grain Full Metal Jacket (FMJ)
- Powder: Hodgdon H335
- Starting Load: 23.0 grains
- Maximum Load: 25.0 grains
- Primer: Small Rifle
- Case Type: Standard 5.56 Case
- Cartridge Overall Length (COL): 2.250 inches
- Approximate Velocity: 3200 feet per second
Bullet Weight and Type: 62-grain FMJ
- Powder: Hodgdon H335
- Starting Load: 22.0 grains
- Maximum Load: 24.0 grains
- Primer: Small Rifle
- Case Type: Standard 5.56 Case
- COL: 2.250 inches
- Approximate Velocity: 3000 feet per second
Bullet Weight and Type: 69-grain HPBT (Hollow Point Boat Tail)
- Powder: Hodgdon H335
- Starting Load: 21.5 grains
- Maximum Load: 23.5 grains
- Primer: Small Rifle
- Case Type: Standard 5.56 Case
- COL: 2.260 inches
- Approximate Velocity: 2850 feet per second
Bullet Weight and Type: 77-grain HPBT
- Powder: Hodgdon H335
- Starting Load: 20.5 grains
- Maximum Load: 22.5 grains
- Primer: Small Rifle
- Case Type: Standard 5.56 Case
- COL: 2.260 inches
- Approximate Velocity: 2700 feet per second
Reloading Process and Tips
Reloading Steps
The steps involved in reloading the 5.56x45mm cartridge with H335 powder, when performed in the correct order, can yield ammunition that is both precise and consistently reliable.
Begin by preparing the cases. This process involves cleaning the brass, trimming it to the correct length, and deburring and chamfering the case mouths. Cleaning removes any residual dirt or debris. Trimming ensures consistency in case length. Deburring and chamfering the case mouth improves bullet seating.
Next, prime the case. This process involves seating a new primer into the primer pocket of the prepared case. Use a primer that is the correct size and type for the cartridge, and follow the manufacturer’s instructions for correct seating.
The crucial step of powder charging follows. Carefully measure the correct amount of H335 powder and charge the case. Use a powder scale to verify the accuracy of the powder charge. Too much powder can create dangerous pressures, while too little may lead to inconsistent performance.
Once the powder charge is verified, seat the bullet into the case. This involves using a seating die to press the bullet into the case mouth to the proper depth. The seating depth will have a dramatic effect on the overall performance.
If you are using a crimping die, crimp the case mouth to secure the bullet in place. This helps maintain consistent bullet pull and prevents the bullet from moving under recoil.
Finally, measure the overall cartridge length (COL) to ensure that the loaded round falls within the specifications provided in the reloading manual.
Working with H335
When working with H335, precision is key. H335 has good metering characteristics, meaning it flows consistently through a powder measure. Nevertheless, it is always recommended to weigh each charge with a digital scale to ensure maximum consistency and eliminate variations.
As you work toward producing your load, remember that velocity, measured in feet per second (fps), is a key performance indicator. The speed and performance of a given load will vary based on several factors. Barrel length is perhaps the most influential, as longer barrels generally provide higher velocities than shorter ones. The type of case being used, the internal volume of the case, and the ambient temperature can also have an impact on performance.
Finding The Right Load
Finding the ideal load, or “sweet spot” for your firearm is an iterative process that involves the systematic adjustment of powder charges. Start at the minimum recommended charge, and slowly increase the load, in small increments. As you approach the upper end of the recommended loading range, or exceed it, you will begin to notice telltale signs of excessive pressure.
Developing Loads for Accuracy
Experimenting and developing loads for accuracy is an important step in reloading. It enables the reloader to develop the ideal load for their specific firearm, which is the load that provides the highest degree of accuracy.
Troubleshooting and Considerations
Pressure Signs and Detection
If, during the loading process, you notice any of the following signs, it may indicate that your load is producing excessive pressure. These are indicators that you must stop and make the appropriate adjustments to your process:
Flattened primers are one of the most common signs of excessive pressure. If the primers appear flattened and the edges are no longer rounded, it may indicate that pressures are too high.
Cratered primers are another sign of potential problems. If the primers are showing a ring of indentation around the firing pin, it may indicate overpressure.
If you notice that the bolt lift is sticky, this may be a warning sign.
If the primer or the case head shows any evidence of excessive case expansion, or ejector marks, you must stop.
Conclusion
Reloading the 5.56x45mm cartridge with H335 powder can be a fulfilling and rewarding endeavor. It provides the opportunity to tailor ammunition to your specific firearm and shooting needs. The process also allows you to gain a deeper understanding of how ammunition works, and how to improve your shooting experience.
Remember that safety should always be the number one priority. Follow the advice contained in this guide. Consult multiple reloading resources, and practice all safety precautions.
By adhering to these safety protocols and mastering the technical aspects of reloading, you can craft ammunition that delivers exceptional performance, and contribute to a more enjoyable and rewarding shooting experience. Never take shortcuts, and always be diligent in your efforts.
