The 6.8mm Creedmoor, or .22 Creedmoor, has rapidly gained popularity among precision rifle shooters and hunters. Its exceptional accuracy and moderate recoil make it a versatile cartridge for a wide range of applications. One of the most popular powders for loading this cartridge is Hodgdon H4350, known for its consistent performance and ability to produce high-velocity loads. This guide provides comprehensive load data for the 22 Creedmoor using H4350, emphasizing safety and accuracy. Remember, always prioritize safety and consult your reloading manual before attempting any reloading.
Understanding the 22 Creedmoor and H4350
The 22 Creedmoor's popularity stems from its balance of performance and manageability. Its relatively flat trajectory and low recoil make it suitable for both long-range shooting and hunting. H4350, a slow-burning extruded powder, is well-suited for this cartridge due to its ability to deliver consistent velocities and excellent accuracy in longer barrels.
H4350's Properties and Suitability for 22 Creedmoor
Hodgdon H4350 is a popular choice for a variety of rifle cartridges, prized for its:
- Burn Rate: Slow-burning, ideal for magnum and larger rifle cartridges but also performs well in the 22 Creedmoor.
- Consistency: Produces consistent velocities, leading to improved accuracy.
- Temperature Stability: Relatively insensitive to temperature variations, ensuring reliable performance in diverse conditions.
- Accuracy: Widely regarded for providing excellent accuracy in many calibers, including the 22 Creedmoor.
22 Creedmoor Load Data with H4350: A Step-by-Step Approach
Disclaimer: The following data is for informational purposes only. Always consult your reloading manual and prioritize safety before attempting any reloading. This data should be considered a starting point, and further testing and fine-tuning may be necessary to optimize performance for your specific rifle and components. Never exceed maximum recommended loads.
This data assumes a standard 22 Creedmoor chamber with a 24-inch barrel. Variations in barrel length, chamber dimensions, and other components may significantly affect results.
| Bullet Weight (grains) | Bullet Type | H4350 Charge (grains) | COL (inches) | Velocity (fps) (Approximate) | Pressure (PSI) (Approximate) | Notes |
|---|---|---|---|---|---|---|
| 40 | Sierra MatchKing | 40.0 | 2.200 | 2900 | 55,000 | Start Low, Work Up |
| 40 | Hornady ELD-M | 40.5 | 2.200 | 2950 | 56,000 | Start Low, Work Up |
| 55 | Hornady A-MAX | 43.0 | 2.250 | 2700 | 58,000 | Start Low, Work Up |
| 55 | Berger VLD Hunting | 43.5 | 2.250 | 2750 | 59,000 | Start Low, Work Up |
| 77 | Sierra MatchKing | 46.0 | 2.300 | 2500 | 60,000 | Start Low, Work Up |
| 77 | Berger VLD | 46.5 | 2.300 | 2550 | 61,000 | Start Low, Work Up |
COL refers to Cartridge Overall Length. This is the measurement from the tip of the bullet to the base of the cartridge case. It's crucial to measure this carefully and maintain consistency.
Important Note: The velocity and pressure data are approximate and may vary depending on several factors. Always start at the minimum charge and work up gradually, carefully observing pressure signs such as flattened primers or excessive case head expansion. Maintain meticulous records of your loading sessions.
Safety Precautions for Reloading 22 Creedmoor with H4350
Reloading is inherently dangerous. Always prioritize safety:
- Consult your reloading manual: Follow the instructions carefully.
- Use appropriate safety gear: Eye protection and hearing protection are essential.
- Work in a well-ventilated area: Powder fumes can be harmful.
- Never mix powders: Using the wrong powder can lead to catastrophic results.
- Inspect your cases and components: Ensure they are free of defects.
- Start low and work up: Gradually increase your powder charge to find the optimal load for your rifle.
- Observe pressure signs: Watch for flattened primers, excessive case head expansion, or unusually high recoil. These are signs of excessive pressure.
- Keep your powder dry: Moisture can significantly affect powder performance and safety.
Conclusion: Accurate and Safe Reloading of the 22 Creedmoor with H4350
Reloading your own ammunition for the 22 Creedmoor using H4350 can provide significant advantages in terms of cost-effectiveness, accuracy, and consistency. However, it is crucial to understand and follow safety guidelines meticulously. Always prioritize safety and consult your reloading manual. The information provided in this article serves as a starting point, and personal experience and careful observation are vital for developing optimal and safe load data for your specific rifle and components. Remember to start low and work up, and carefully monitor pressure signs throughout the process.