First Impressions of Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets promise a unique solution for shooters seeking subsonic performance with reliable expansion in the popular 7.62x39mm caliber. These bullets from Hornady are designed to deliver deep penetration and expansion at velocities below the speed of sound, which is particularly appealing for suppressed rifles and close-range applications. I was intrigued by the Flex Tip technology and the promise of reliable expansion, something that many subsonic rounds struggle to achieve.
Living in a rural area where feral hogs are a persistent problem, and with a desire to use my AK platform suppressed, I needed a reliable subsonic round. I’ve tried various 7.62x39mm subsonic options in the past, and many have failed to deliver consistent expansion or cycle reliably in my AK. I was searching for a bullet that would provide both terminal performance and reliable cycling.
Upon receiving the Hornady Sub-X bullets, I immediately noticed their distinct profile and the prominent Flex Tip insert. The bullets feel well-constructed, with a consistent weight and a smooth gilding metal jacket. The flat point and deep hollow point cavity suggest a strong potential for expansion.
Compared to other 7.62x39mm subsonic bullets I’ve used, such as the Lehigh Defense 174gr Maximum Expansion or generic cast lead options, the Hornady Sub-X stood out due to its advertised expansion at lower velocities. While the Lehigh Defense bullets are known for their aggressive expansion, they are significantly more expensive. The cast lead bullets are affordable, but their expansion is unpredictable. The Hornady Sub-X seemed to strike a balance between price and performance.
My initial impression was one of cautious optimism. I was eager to load these bullets and test their performance in my AK, but also a little skeptical given my past experiences with subsonic 7.62x39mm. The advertised features and the reputation of Hornady gave me hope that these bullets would live up to their claims.
Real-World Testing: Putting Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets to the Test
First Use Experience
My first test of the Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets was at my local shooting range, followed by a more practical application during a nighttime hog hunt on my property. I wanted to assess accuracy, cycling reliability, and expansion potential in a controlled environment before relying on them for hunting. The range session was conducted on a clear, cool day, while the hunt took place on a humid evening.
At the range, I tested the Sub-X bullets with various powder loads to find a combination that would cycle reliably in my AK and maintain subsonic velocities. While accuracy was acceptable, cycling was initially problematic, confirming some of the user feedback I had read. The lighter loads failed to cycle the action consistently, while the heavier loads showed potential.
Extended Use & Reliability
After several weeks of load development and repeated range sessions, I finally found a powder charge that reliably cycled my AK while staying subsonic. I have put approximately 200 rounds downrange with the Hornady Sub-X bullets. I’ve also used them on three separate hog hunts.
The bullets have held up well to repeated loading and firing, with no signs of jacket separation or deformation. Maintenance is straightforward, as the gilding metal jacket cleans up easily. I’ve found these rounds to be more reliable than previous subsonic 7.62x39mm rounds I’ve tested.
Breaking Down the Features of Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets
Specifications
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets boast several key specifications that contribute to their subsonic performance and expansion capabilities. These bullets are specifically designed for the 7.62x39mm caliber, weighing in at 255 grains, making them substantially heavier than standard 7.62x39mm bullets. The .3115 Caliber projectile is crucial for proper fitment and accuracy in most 7.62x39mm barrels.
The bullet features a lead core and a gilding metal jacket. Long grooves in the jacket are designed to promote reliable expansion at subsonic velocities. The Sub-X bullet also incorporates a patented Flex Tip insert within the hollow point cavity.
- Manufacturer: Hornady
- Gun Type: Rifle
- Bullet Type: Subsonic eXpanding (Sub-X)
- Caliber: 7.62x39mm
- Bullet Weight: 255 grain
- Projectile Caliber: .3115 Caliber
- G1 Ballistic Coefficient: 0.365
- Sectional Density: 0.374
- Jacket Material: Copper
- Condition: New
- Bullet Quantity: 100 Bullet
- Application: Medium Game, Personal Defense
These specifications matter because they directly influence the bullet’s ability to perform as intended. The heavy bullet weight and subsonic design reduce noise when used with a suppressor, while the Flex Tip and jacket design enhance expansion. The cannelure is also critical for ensuring a secure case crimp.
Performance & Functionality
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets are designed for subsonic performance with reliable expansion, and they generally deliver on this promise. Their accuracy is adequate for their intended purpose, which is typically short-range engagements where precision is less critical than terminal performance. However, as one user noted, reliable cycling can be an issue, particularly in AK platforms, requiring careful load development.
The Flex Tip technology appears to be effective in initiating expansion at lower velocities, as evidenced by the wound channels observed during my hog hunts. The Sub-X bullets meet my expectations for terminal performance in a subsonic 7.62x39mm round, but the cycling issues need to be addressed with tailored loads.
Design & Ergonomics
The build quality of the Hornady Sub-X bullets is excellent, with consistent dimensions and a smooth jacket. The weight of the 255-grain bullet is noticeable when loading magazines. There is no learning curve associated with using these bullets.
Durability & Maintenance
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets are made with quality materials and should last indefinitely if stored properly. I don’t anticipate any issues with their longevity. Cleaning my firearm after using these bullets is no different than cleaning after using any other jacketed bullet.
Accessories and Customization Options
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets themselves don’t require any specific accessories, but their performance can be enhanced by using a suppressor. Careful load development is essential for achieving reliable cycling in semi-automatic rifles. Compatibility with different powder types and bullet seating depths allows for some customization.
Pros and Cons of Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets
Pros
- Reliable Expansion at Subsonic Velocities: The Flex Tip technology ensures expansion even at low speeds.
- Designed for Suppressed Firearms: Subsonic design minimizes noise when used with a suppressor.
- High-Quality Construction: Hornady’s reputation for quality is evident in these bullets.
- Positive Case Crimp: The Cannelure provides positive case crimp, making Sub-X ideal for semiautomatic weapons
- Wide Range Of Guns: Designed to fit, feed and function in a variety of firearms, including gas system guns.
Cons
- Cycling Issues: Requires careful load development for reliable cycling in semi-automatic rifles, especially AK platforms.
- Price: More expensive than standard 7.62x39mm bullets.
Who Should Buy Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets?
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets are perfect for hunters using suppressed 7.62x39mm rifles for close-range engagements, particularly hog and deer hunting. They are also suitable for individuals seeking a subsonic, expanding round for personal defense. Those who should skip this product are shooters who prioritize long-range accuracy or those who are unwilling to invest time in load development for reliable cycling.
A must-have accessory is a quality suppressor to maximize the noise reduction benefits of the subsonic design. Additionally, reloading equipment and components are necessary for tailoring the loads to specific firearms.
Conclusion on Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets
The Hornady Sub-X 7.62x39mm 255 Grain Rifle Bullets offer a compelling solution for shooters seeking subsonic performance with reliable expansion in the 7.62x39mm caliber. The price is justified by the specialized design and the quality of the components. While some load development may be required to achieve optimal cycling, the terminal performance and noise reduction benefits make these bullets a worthwhile investment for the right application.
I would personally recommend the Hornady Sub-X bullets to anyone seeking a reliable subsonic 7.62x39mm round for hunting or personal defense. If you’re looking for a specialized bullet designed for subsonic performance and expansion, give the Hornady Sub-X a try!