Hodgdon HP-38 is a popular propellant among reloaders due to its versatility and suitability for various handgun cartridges. This guide provides comprehensive load data for Hodgdon HP-38, emphasizing safety and accuracy. Always consult the latest Hodgdon reloading manual for the most up-to-date and accurate load data before beginning any reloading project. This information is for educational purposes only and should not be considered a substitute for the official manual.
Understanding Hodgdon HP-38
Hodgdon HP-38 is a spherical propellant known for its clean burning characteristics and relatively low flash. Its versatility makes it suitable for a range of calibers and bullet weights, but proper load development is crucial for optimal performance and safety. Remember that the data presented here is a starting point; you may need to adjust based on your specific firearm and components.
Key Considerations Before Reloading
- Safety First: Reloading is inherently dangerous. Careless practices can lead to serious injury or death. Always wear safety glasses and ear protection.
- Manual is Mandatory: Never rely solely on online data. Consult the current Hodgdon reloading manual for your specific cartridge and bullet combination. Variations in components and manufacturing processes can affect results.
- Accurate Measurement: Use a precise powder measure to ensure consistent powder charges. Inconsistent powder charges are a major cause of pressure variations and potential danger.
- Gradual Load Development: Start with the minimum charge listed in the Hodgdon manual and work your way up in small increments (0.1 grain or less), carefully noting the results.
- Observe for Pressure Signs: Watch for excessive pressure signs such as flattened primers, unusually hard bolt lift, or excessive gas leakage. If you see any of these signs, immediately stop loading and reduce the powder charge.
- Proper Equipment: Invest in quality reloading equipment, including a scale, powder measure, case trimmer, and bullet seater.
Sample Load Data (Illustrative Only - Refer to Hodgdon Manual)
The following data is for illustrative purposes only and should never be used as a substitute for the official Hodgdon reloading manual. This data is not exhaustive and doesn't cover all possible bullet weights and case types.
| Cartridge | Bullet Weight (grains) | Bullet Type | Primer | Powder (grains) | COL (inches) | Notes |
|---|---|---|---|---|---|---|
| .38 Special | 158 gr | Lead RN | Small Pistol | 3.8 - 4.2 | 1.560 | Example Only – Confirm in Manual |
| .38 Special | 125 gr | Lead SWC | Small Pistol | 3.5 - 3.9 | 1.550 | Example Only – Confirm in Manual |
| .357 Magnum | 158 gr | Lead RNFP | Large Pistol | 4.7 - 5.1 | 1.575 | Example Only – Confirm in Manual |
COL refers to Cartridge Overall Length. This measurement is crucial for proper chambering and function. Always check your COL with a cartridge case gauge.
Finding the Right Hodgdon HP-38 Load for You
To determine the optimal load for your specific firearm and components, follow these steps:
- Consult the Hodgdon Manual: The Hodgdon reloading manual is your primary source of information. Ensure you are using the most recent edition.
- Choose Your Components: Select bullets, primers, and cases that are compatible with your firearm and the HP-38 powder.
- Start Low and Go Slow: Begin with the minimum charge listed in the manual. Work up gradually in small increments, testing accuracy and observing for any signs of excessive pressure.
- Chronograph Your Loads: If possible, use a chronograph to measure the velocity of your loads. This helps to ensure consistency and optimize performance.
- Record Your Data: Keep detailed records of your load development process, including the powder charge, bullet weight, velocity, and any observations regarding accuracy and pressure signs.
Disclaimer: This information is for educational purposes only. The author and publisher are not responsible for any injury or damage resulting from the use of this information. Always consult the official Hodgdon reloading manual before attempting to reload ammunition. Safe reloading practices are essential.
