Hodgdon HP-38 is a popular pistol powder known for its versatility and suitability for a wide range of handgun cartridges. This guide provides comprehensive load data for various calibers, emphasizing safety and accuracy. Always consult your own reloading manuals and prioritize safe reloading practices. This information is for educational purposes only and should not be considered a substitute for official loading data.
Understanding Hodgdon HP-38
HP-38 is a spherical, extruded powder, meaning it's made from compacted grains rather than being formed in a single extrusion process. This spherical shape contributes to its consistent burning rate and metering characteristics. It's particularly well-suited for cartridges needing a moderate burn rate, making it a favorite among reloaders for various applications. However, its performance varies based on the specific cartridge and bullet weight.
Safety First: Reloading Responsibilities
Before we delve into specific load data, let's reiterate the paramount importance of safety. Reloading is a precise process with potential dangers. Failure to adhere to safety protocols can lead to serious injury or equipment damage. Always:
- Start with minimum loads: Never begin with maximum loads; instead, work your way up gradually.
- Use a reliable reloading manual: This guide is for informational purposes only and shouldn't replace the data found in manuals specific to your equipment and components.
- Double-check your measurements: Accuracy is critical in reloading. Carefully weigh each charge to ensure consistency.
- Inspect your cases and bullets: Ensure they're free of damage or defects.
- Wear appropriate safety gear: Eye protection and hearing protection are essential.
- Understand your equipment: Become proficient with your reloading press and all associated tools.
- Clean your equipment regularly: Maintaining your equipment ensures accurate operation and safety.
Hodgdon HP-38 Load Data Examples (Consult Your Manual for Complete Data)
The following data is for illustrative purposes only. Do not use this data without referring to the official Hodgdon reloading manual and verifying compatibility with your specific firearm, bullets, and primers. Variations in components can significantly impact pressure and accuracy.
Disclaimer: The following is example data and should not be used without consulting official Hodgdon reloading manuals. This information is for educational purposes only.
.38 Special
| Bullet Weight (grains) | Bullet Type | Primer | Powder Charge (grains) | COL (inches) | Notes |
|---|---|---|---|---|---|
| 158 | Lead RN | Small Pistol | 3.5 - 4.0 | 1.560 | Start low, work up |
| 125 | Lead RNFP | Small Pistol | 3.8 - 4.3 | 1.560 | Start low, work up |
.357 Magnum
| Bullet Weight (grains) | Bullet Type | Primer | Powder Charge (grains) | COL (inches) | Notes |
|---|---|---|---|---|---|
| 158 | Lead SWC | Large Pistol | 5.0 - 5.5 | 1.590 | Start low, work up |
| 125 | Jacketed JHP | Large Pistol | 5.5 - 6.0 | 1.250 | Start low, work up |
9mm Luger
| Bullet Weight (grains) | Bullet Type | Primer | Powder Charge (grains) | COL (inches) | Notes |
|---|---|---|---|---|---|
| 124 | Jacketed FMJ | Small Pistol | 4.5 - 5.0 | 1.125 | Start low, work up |
| 115 | Jacketed HP | Small Pistol | 4.8 - 5.3 | 1.100 | Start low, work up |
Factors Affecting Load Data
Several factors influence the appropriate powder charge for your specific reloading setup:
- Bullet weight and type: Heavier bullets generally require more powder. The bullet's design also affects pressure.
- Case capacity: Variations in case capacity, even within the same manufacturer, can affect pressure.
- Primer type: Different primers can have slight variations in ignition characteristics.
- Altitude and temperature: Higher altitudes and extreme temperatures can affect powder burn rate.
- Barrel length: Longer barrels can result in higher pressures.
Conclusion
Reloading with Hodgdon HP-38 can be rewarding, but safety must always be the top priority. This guide provides an overview, but always consult your specific reloading manuals for accurate and safe load data. Thorough research, meticulous attention to detail, and a commitment to safe practices are essential for successful and safe reloading. Never compromise safety. Remember to always double-check your work and seek guidance if you have any uncertainties.
