CFE BLK Subsonic Load Data: A Comprehensive Guide for Quiet Shooting

Understanding CFE BLK Powder

What is CFE BLK?

The quiet whisper of a projectile slicing through the air, the satisfying thud of impact, and the absence of the jarring sonic boom – this is the allure of subsonic shooting. For those seeking stealth, precision, or simply a unique shooting experience, subsonic ammunition offers an enticing alternative. And when it comes to achieving those whisper-quiet results, the right powder choice is paramount. Enter CFE BLK, a powder rapidly gaining popularity amongst reloaders looking for excellent performance in subsonic loads. This article provides a comprehensive guide to help you understand and utilize CFE BLK subsonic load data safely and effectively.

Before diving into the specifics of CFE BLK subsonic load data, let’s explore the powder itself. CFE BLK, manufactured by Hodgdon, is specifically designed for the .300 Blackout cartridge, although its versatility extends beyond. The name “CFE” stands for Copper Fouling Eraser, an additive designed to minimize copper buildup in your firearm’s barrel. This is beneficial, as it can improve accuracy and reduce the need for frequent cleaning.

Beyond its copper-erasing capabilities, CFE BLK offers several advantages that make it an excellent choice for subsonic applications. Its burn rate is carefully calibrated to perform efficiently at lower pressures, allowing for optimal velocity within the subsonic range. This means you can achieve those desired quiet speeds without sacrificing performance. The powder’s relatively clean-burning nature further contributes to a more enjoyable shooting experience and reduced fouling in your firearm. Its easy metering characteristics also make it a favorite among reloaders, as it consistently dispenses accurate powder charges.

Benefits of CFE BLK for Subsonic Loads

The advantages of using CFE BLK for subsonic loads are significant. First and foremost is the potential for increased accuracy. Its burn rate allows for efficient combustion at the lower velocities characteristic of subsonic rounds, leading to more consistent performance and tighter groupings on the target. Secondly, it provides a good velocity window for various bullet weights. The flexibility of CFE BLK allows reloaders to experiment with different bullet weights and find the optimal combination for their specific needs and firearms. Finally, its relatively clean-burning nature means less time spent cleaning and maintaining your firearms. This is a significant advantage for those who shoot frequently or prefer a less time-consuming maintenance routine.

Subsonic Reloading Fundamentals

Reloading your own ammunition allows for unparalleled control over the final product. However, safety is always the primary concern. This cannot be stressed enough; reloading is a potentially hazardous activity.

Safety First!

• Always wear appropriate safety glasses, gloves, and other personal protective equipment (PPE) while reloading.
• Reload in a well-ventilated area to avoid inhaling powder fumes or potential lead exposure.
• Never exceed the maximum powder charge specified in your reloading manuals or from reputable load data sources. Overcharging can result in serious injury or damage to your firearm.
• Carefully inspect all reloading equipment and components before use. Ensure that your reloading press, dies, scale, and other tools are functioning correctly.
• Keep your reloading area clean and organized to minimize the risk of errors.
• Always double-check your powder charge before seating the bullet. Mistakes in powder charging can have severe consequences.
• If you are unsure about any step in the reloading process, seek guidance from an experienced reloader or refer to comprehensive reloading resources.

Essential Reloading Equipment

To begin reloading subsonic ammunition with CFE BLK, you’ll need the following:

• Reloading Press and Dies: You’ll need a reloading press and a set of reloading dies designed for the specific cartridge you are loading (e.g., .300 Blackout). Dies are available to resize the case, seat the bullet, and crimp it.
• Powder Scale and Powder Measure: A precise powder scale is essential for accurately measuring powder charges. A powder measure can help to consistently dispense the correct amount of powder for each round.
• Primers: Appropriate primers are needed to ignite the powder charge. The primer type will be listed in your CFE BLK subsonic load data.
• Cases: Cases, specifically .300 Blackout cases are needed. These should be inspected and prepared for reloading.
• Bullets: Bullet selection plays a crucial role in subsonic performance. Consider bullet weight, design, and ballistic coefficient (BC) for optimal results.
• Case Trimmer: Case trimming ensures consistent case length, which is critical for accuracy and safe operation.
• Calipers: Calipers are necessary for accurately measuring case length, overall cartridge length, and other dimensions.
• Loading block: Necessary to keep the cartridges from rolling over during the loading process.

Reloading Steps: A Brief Overview

While specific details vary depending on the cartridge and bullet being used, the general steps in the reloading process remain consistent. This is an overview; always consult a reloading manual for detailed instructions.

• Case Preparation: This includes cleaning the cases, resizing them in the appropriate die, trimming them to the correct length, and deburring and chamfering the case mouth.
• Priming: Insert a new primer into the primer pocket of the prepared case.
• Powder Charging: Carefully measure the specified powder charge using the scale and powder measure, and pour the powder into the case. Accuracy is paramount in this step.
• Bullet Seating: Seat the bullet into the case to the correct overall length (OAL) specified in your load data.
• Crimp (if applicable): If required for the specific bullet and cartridge, apply a crimp to secure the bullet in place.
• Inspection: Carefully inspect the loaded cartridge for any defects, such as incorrect OAL, bulged cases, or improper bullet seating.

Finding Reliable Load Data

Accessing accurate and safe CFE BLK subsonic load data is essential for successful reloading. Always prioritize information from trusted sources and work up loads incrementally.

Important Notes Before Working with Load Data

• Disclaimer: Reloading is inherently dangerous. The load data provided in this article is for informational purposes only. Always consult reputable reloading manuals and resources and start with minimum load recommendations, working up carefully while observing pressure signs. The user assumes all responsibility for safety.
• Bullet Selection: Bullet weight and design are critical to subsonic performance. Consult load data that specifically lists the bullet type you are using.
• Testing Environment: Ideally, record the testing environment conditions (temperature, altitude) to correlate with your shooting results.

Working with Load Data

To offer some specific guidance, let’s look at a sample of load data, remembering that this is for example purposes and should be verified with other resources before use. This will often be formatted in a table, as described below. Remember to consult the source for specific details.

Load Data Tables (Example)

The following is a sample table of load data that might appear when researching CFE BLK subsonic load data. This is not exhaustive and is for illustration only. *Always refer to a reliable source for your specific cartridge and bullet.*

• Bullet Weight: The weight of the bullet in grains.
• Bullet Type: The specific bullet design and manufacturer.
• Powder Charge: The recommended range of CFE BLK powder charges, starting with the minimum and working up to the maximum.
• Primer Type: The recommended type of primer to use.
• Case Type: The manufacturer of the case used for testing.
• OAL: The Overall Cartridge Length, the overall length of the assembled cartridge.
• Velocity: The estimated velocity of the bullet in feet per second.
• Notes/Considerations: Additional information about the load, such as accuracy characteristics, cycling reliability, and potential issues.

Key Sources for Load Data

• Hodgdon Website: Hodgdon publishes load data for their powders, including CFE BLK. This is an excellent primary source.
• Reloading Manuals: Reloading manuals from well-respected manufacturers, such as Lyman, Hornady, and Sierra, are crucial resources for load data.
• Online Forums: Online forums and communities can provide additional information, but always verify the data against reliable sources and exercise caution.

Factors Influencing Subsonic Performance

Achieving consistent and accurate subsonic performance involves careful consideration of several factors.

Bullet Selection

Bullet weight and design are paramount. Heavier bullets generally travel at slower velocities, contributing to subsonic performance. However, the bullet’s design also affects its terminal performance and the overall effectiveness of the round.

• Weight: Heavier bullets (e.g., 200gr, 220gr, and up) are often preferred for subsonic loads.
• Design: Hollow point (HP) bullets or those specifically designed for subsonic use often offer better expansion and terminal effects.

Powder Charge

The powder charge is the cornerstone of load development. Accurate and consistent powder measurements are crucial for safe and predictable results.

• Precision: Always use a calibrated powder scale and powder measure.
• Working Up Loads: Start with the minimum recommended powder charge and gradually increase it, observing for pressure signs.

Barrel Length and Twist Rate

Barrel length and twist rate influence bullet stability and velocity.

• Barrel Length: Shorter barrels typically result in lower velocities, making them well-suited for subsonic loads.
• Twist Rate: For heavier bullets used in subsonic loads, a faster twist rate (e.g., 1:7 or 1:8 for .300 Blackout) is necessary to ensure bullet stability.

Suppressor Use

Suppressors are frequently paired with subsonic ammunition to maximize the quiet shooting experience.

• Sound Reduction: Suppressors significantly reduce the sound signature of the shot.
• Compatibility: Ensure that your firearm and suppressor are compatible.

Troubleshooting Common Issues

Even with careful reloading, issues can sometimes arise. Identifying and resolving these problems are essential.

Inconsistent Velocities

Inconsistent velocities can impact accuracy.

• Powder Metering: Ensure consistent powder dispensing.
• Case Prep: Consistent case prep is also important.
• Primers: Consider using the same lot of primers.

Keyholing

Keyholing occurs when the bullet tumbles in flight, leading to inaccurate shots.

• Twist Rate: Ensure you are using a suitable twist rate for your bullet weight.
• Bullet Instability: The bullet may not be properly stabilized in flight, this is often related to the twist rate.
• Velocity: Insufficient velocity may cause keyholing.

Failure to Cycle

For semi-automatic firearms, failures to cycle can occur with subsonic loads.

• Gas System: Adjust the gas system to function with the specific subsonic load.
• Load Development: Adjust powder charges to optimize cycling reliability.

In Closing

Using CFE BLK subsonic load data can open up a whole new world of shooting opportunities, offering a unique and satisfying experience. Remember that safety is of utmost importance, and responsible reloading practices are essential for enjoying the benefits of subsonic shooting. By utilizing the information in this guide and always prioritizing safety, you’ll be well on your way to achieving quiet, accurate, and enjoyable shooting experiences. Always research and double-check all data before loading.

Further Research

To gain a deeper understanding of your cartridge and bullet, do not hesitate to look at other reloaders’ experiences with these types of ammunition. Consult the many sources described here. Experiment responsibly.

Enjoy the Quiet!