The 300 Blackout cartridge has gained immense popularity among shooters and reloaders alike, largely due to its versatility. Its ability to handle both subsonic and supersonic loads opens up a wide range of applications, from hunting to home defense. Within the 300 Blackout realm, heavier bullets, particularly those weighing 220 grains, offer unique advantages, especially for subsonic applications. This guide delves into the specifics of 220-grain 300 Blackout bullets for reloading, exploring their benefits, considerations, and the reloading process itself.
Understanding the Advantages of 220 Grain 300 Blackout Bullets
The primary benefit of using a 220-grain bullet in a 300 Blackout load is its subsonic performance. Heavier bullets, traveling at speeds below the speed of sound (approximately 1125 feet per second), produce less noise, making them ideal for suppressed shooting and hunting situations where noise is a concern. This is because the characteristic sonic boom associated with supersonic projectiles is absent.
Furthermore, heavier bullets tend to have higher ballistic coefficients (BC). This means they retain velocity better over longer distances than lighter bullets. While a 220-grain bullet won't be a long-range marvel compared to supersonic rounds, its improved BC in subsonic applications will offer superior accuracy and energy downrange.
Finally, the increased weight contributes to higher retained energy on target. This translates to better stopping power, particularly important for hunting or self-defense applications. The heavier projectile transfers more kinetic energy upon impact, resulting in a more effective round.
Bullet Choices: Types and Considerations for Reloading
The market offers several excellent 220-grain bullets designed specifically for the 300 Blackout cartridge. Choosing the right bullet depends heavily on the intended use. Some popular choices include:
- Lead Core: These bullets are typically less expensive but require a harder-cast lead alloy to withstand the pressures of the 300 Blackout. They may also be more prone to leading in the barrel if not properly sized and lubricated.
- Copper-Jacketed Lead Core: Combining the affordability of lead with the superior accuracy and reduced leading of a jacketed bullet, these often provide a good balance.
- Full Metal Jacket (FMJ): FMJs are usually the most accurate due to their consistent construction and often provide superior barrel life. However, they may not expand as reliably as other bullet types.
- Subsonic Hollow Point (SHP): These are designed for subsonic applications and typically provide good expansion at lower velocities.
Table 1: Comparison of 220 Grain 300 Blackout Bullet Types
| Bullet Type | Cost | Accuracy | Expansion | Leading Potential |
|---|---|---|---|---|
| Lead Core | Low | Moderate | Low | High |
| Copper Jacketed Lead Core | Moderate | Good | Moderate | Low |
| Full Metal Jacket (FMJ) | Moderate | Excellent | None | Low |
| Subsonic Hollow Point | High | Good | Excellent | Low |
Note: This table represents general trends. Specific performance can vary by manufacturer and bullet design.
The Reloading Process: A Step-by-Step Guide
Reloading your own 300 Blackout ammunition, particularly with 220-grain bullets, allows for precise control over the final product, ensuring consistent performance and accuracy. However, it's crucial to proceed with caution and follow all safety precautions. Always consult your reloading manual for precise charge weights and specific instructions for your chosen components.
1. Gather your Equipment: This includes a reloading press, dies (sizing, seating, and crimping), a scale, powder measure, case trimmer, primer pocket cleaner, calipers, and safety equipment (eye protection, hearing protection).
2. Case Preparation: Clean and inspect your brass cases. Trim them to the proper length using a case trimmer. Deburr and chamfer the case mouths.
3. Resize Cases: Use the sizing die to resize your brass to the correct dimensions.
4. Prime Cases: Carefully prime your resized cases using a priming tool.
5. Charge Cases with Powder: Use your powder measure to accurately dispense the correct amount of powder into each case. Double-check your powder charge weight before proceeding.
6. Seat Bullets: Using the seating die, carefully seat the 220-grain bullet into the case to the desired depth.
7. Crimp Cases: Finally, use the crimping die to firmly crimp the bullet securely in place.
8. Inspect Ammunition: Thoroughly inspect your finished rounds. Ensure that the bullets are seated properly and the crimps are secure. Any irregularities should result in discarding the round.
Safety First: Critical Considerations
Reloading ammunition involves working with potentially hazardous materials. Always prioritize safety:
- Read your reloading manual carefully. This is the most important step.
- Always wear safety glasses and hearing protection.
- Use a properly functioning reloading scale.
- Never exceed the maximum recommended powder charge. Overloading can lead to catastrophic equipment failure and serious injury.
- Store your ammunition properly. Keep it in a cool, dry place away from children and unauthorized individuals.
Conclusion: Harnessing the Power of 220 Grain 300 Blackout
The 220-grain bullet offers unique advantages for 300 Blackout reloading, particularly in subsonic applications. Its ability to deliver high retained energy at lower velocities, coupled with its superior ballistic coefficient, makes it a highly effective choice for specific tasks. However, careful attention must be paid to the reloading process and safety precautions. With proper attention to detail, you can craft potent and accurate ammunition ideal for your specific needs. Remember to always consult your reloading manual and prioritize safety above all else.