Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets Review

Let’s Dive into Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets

Varmint hunting is a passion, and the right bullet can make or break a hunt. The Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets promise explosive expansion and match-grade accuracy. This caught my eye as I was consistently seeking a projectile that could deliver both flat trajectories and devastating terminal performance on prairie dogs.

I was plagued with inconsistent results from a variety of .20 caliber bullets; some lacked the necessary expansion, while others lacked pinpoint accuracy at longer ranges. This quest for the “perfect” varmint bullet led me directly to Sierra Bullets. My initial impression was positive.

Compared to other .20 caliber options, such as the Hornady V-Max or Nosler Varmageddon, the Sierra BlitzKing bullets stood out due to Sierra’s reputation for producing exceptionally accurate projectiles. I hoped these bullets would deliver on that promise in my custom .204 Ruger rifle. I was initially excited, but also a little skeptical, hoping they would live up to the hype and alleviate my varmint-dispatching woes.

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Real-World Testing: Putting Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets to the Test

First Use Experience

I tested the Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets at a prairie dog town in eastern Montana. The conditions were typical for that region: dry, dusty, and with unpredictable winds. Getting these bullets to group accurately out to 400 yards was my primary goal.

The bullets performed admirably, grouping sub-MOA after dialing in the load. The explosive expansion on impact was immediately apparent, leaving no doubt about their terminal effectiveness. The wind presented a significant challenge, demanding constant adjustments, but the BlitzKings held their own and delivered consistent results.

Extended Use & Reliability

After several weeks of continuous use during the varmint season, the Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets continued to perform exceptionally well. I experienced no malfunctions or inconsistencies in accuracy across multiple shooting sessions. The bullets proved incredibly reliable in dispatching prairie dogs at various distances.

I noticed minimal signs of wear and tear on the bullets themselves, even after handling them extensively during reloading. Given the bullet’s design, no special maintenance was required; a standard cleaning of my rifle after each shooting session sufficed. These bullets significantly outperformed any other .20 caliber varmint projectiles I had used previously, particularly in terms of terminal performance.

Breaking Down the Features of Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets

Specifications

The Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets feature the following specifications:

• Caliber: .20 Caliber. This caliber is known for its high velocity and flat trajectory, making it ideal for varmint hunting at longer distances.
• Bullet Weight: 39 grain. The 39-grain weight strikes a balance between velocity and ballistic coefficient, allowing for efficient energy transfer on small game.
• Bullet Type: Spitzer Boat Tail (SBT). The Spitzer Boat Tail design reduces drag, improving ballistic coefficient and enhancing accuracy at extended ranges.
• Sectional Density: 0.134. The sectional density, while relatively low, still allows for effective penetration on smaller varmints and ensures adequate expansion.
• Material: Copper. The copper jacket ensures consistent expansion and reliable performance.
• Additional Features: Polymer Tip. The polymer tip initiates rapid expansion upon impact, resulting in devastating terminal effects.
• Bullet Quantity: 100 Bullets.
• Country of Origin: USA.

These specifications are crucial because they directly influence the bullet’s trajectory, accuracy, and terminal performance. A higher ballistic coefficient and boat tail design translate to less wind drift and a flatter trajectory. Sierra’s attention to detail in manufacturing ensures that each bullet performs consistently.

Performance & Functionality

The Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets excels in its primary role: delivering devastating terminal performance on varmints while maintaining exceptional accuracy. The bullets exhibit consistent sub-MOA accuracy out to extended ranges when paired with a well-tuned rifle. The explosive expansion on impact is truly remarkable, ensuring quick and humane kills.

The primary strength lies in its ability to combine flat trajectory with explosive terminal effects. The only area for improvement would be further optimizing the ballistic coefficient for even better wind resistance, although this is a minor concern. The bullet has exceeded my expectations in terms of both accuracy and terminal performance.

Design & Ergonomics

The Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets boasts a streamlined Spitzer Boat Tail design. The build quality is excellent, with consistent dimensions and a smooth copper jacket. Handling these bullets during reloading is comfortable and straightforward.

The design is specifically optimized for aerodynamic efficiency and rapid expansion, leaving little room for improvement. These bullets are user-friendly, with no significant learning curve associated with loading or shooting them.

Durability & Maintenance

The durability of the Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets is high, given their intended purpose. The copper jacket resists deformation during handling and loading. No special maintenance is required other than proper storage to prevent corrosion.

I expect these bullets to maintain their performance characteristics for an extended period if stored correctly. The ease of maintenance contributes to their overall appeal.

Accessories and Customization Options

The Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets do not come with accessories, as they are projectiles intended for reloading. However, these bullets are compatible with a wide range of .20 caliber rifles and reloading components. Many reloaders will experiment with different powders and seating depths to optimize the load for their specific rifle.

While Sierra does not offer direct customization options for these bullets, handloading allows for significant fine-tuning to achieve desired performance characteristics. The compatibility with various reloading components enhances its appeal to experienced reloaders.

Pros and Cons of Sierra Bullets .20 Caliber 39 Grain SBT BlitzKing Rifle Bullets