12.7x42 Ammo

Steinel Ammunition Co.’s premium 12.7×42 ammo is engineered for big-bore AR-platforms and even short-action bolt guns. Our 12.7 x 42 ammo is suited for applications where heavy-for-caliber terminal energy, reliable barrier performance, and controllable recoil are essential. They deliver consistent ballistics and responsibly tuned terminal performance for hunting and combat applications. Our 12.7×42 is compatible with Alexander Arms .50 BEOWULF® uppers. The .50 BEOWULF® trademark is owned exclusively by Alexander Industries, Inc., DBA Alexander Arms.

  • 12.7x42mm 700gr. Hard Cast “Omega”

    In Stock
    $68.26
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  • 280gr Spire Point 12.7x42mm Ammo | Designed for 50 BEOWULF® Uppers

    In Stock
    $61.19
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  • 12.7x42mm 600gr. Hard Cast LFNGC

    In Stock
    $63.21
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  • 12.7x42mm 414gr. Spire Point- The “Brass Spike”

    $61.19
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  • 12.7x42mm 500gr. Hornady FP-XTP

    In Stock
    $57.15
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  • 12.7x42mm 350gr. Hornady XTP Mag

    In Stock
    $49.31
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Steinel’s .50 BEOWULF® ammo for sale provides a range of options for different applications, so you can find the perfect round for your needs. Whether you are hunting, training, or engaging in tactical shooting, our rounds deliver the performance, reliability, and accuracy that every shooter demands. Explore Steinel’s premium selection of 12.7×42 ammo, designed specifically for .50 BEOWULF® Uppers.

Tips to Choose the Right .50 BEOWULF® Ammunition

Here are some tips to choose the right .50 BEOWULF® ammunition for your needs:

  • Assess Bullet Design: You can evaluate various bullet designs, including soft-point, hollow-point, full-metal-jacket, or even brass monolithics. Among these:
    • Soft Point (SP): It offers both penetration andcontrolled expansion.
    • Hollow Point (HP): It expands upon impact, ensure sufficient bullet weight and/or jacket thickness to minimize premature expansion
    • Full Metal Jacket (FMJ): It is best for target practice, offering consistent performance at a lower cost.
  • Determine Your Primary Use: How do you plan to use the ammunition? For:
    • Hunting: Choose a round with high terminal performance and penetration, such as hollow points or soft points, for effective game takedown.
    • Self-Defense: .50 BEOWULF® uppers and all of our 12.7×42 loads offer more than enough stopping power for tactical applications. Consider monolithic for barrier penetration if needed.
    • Target Practice: Choose full Metal Jacket (FMJ) or more budget-oriented JHP rounds for training due to their affordability.
  • Consider Bullet Weight: Again, this would depend on your primary use. Choose heavier bullets, 450gr to 700gr, for big game hunting\. However, lighter bullets, 250gr to 350gr, offer higher velocity and flatter trajectories, making them ideal for medium game or slightly extended ranges.
  • Check for Compatibility: Ensure the ammunition is compatible with your .50 BEOWULF® rifle or upper receiver. Steinel’s ammo is designed specifically for .50 BEOWULF® chambers, ensuring optimal performance and reliability.
  • Evaluate Ballistics: Understand the ballistics of the round, including velocity, energy, and trajectory. For longer-range shooting, opt for rounds with flatter trajectories and high velocity for more accurate hits at distance.

.50 BEOWULF® Ammunition vs Other Cartridges

Are you curious about how 12.7×42 ammunition compares to other popular options? Here’s a breakdown:

  • .50 BEOWULF® vs 300 Blackout: The .50 BEOWULF® offers significantly more power and stopping power than the 300 Blackout, particularly at close to medium range. Although both these cartridges are designed to function in the AR-15 platform, they achieve their stopping power through different methods.
  • .50 BEOWULF® vs 45-70: Both .50 BEOWULF® and 45-70 deliver massive blows with heavy bullets at ranges under 150 yards. This makes them ideal for effective hunting in dense bushes.
  • .50 BEOWULF® vs 5.56 NATO: The .50 BEOWULF® has significantly more bullet weight and frontal area overthe 5.56 NATO, making it the better choice for those seeking maximum impact at short ranges. 5.56 shines, however, in the area of magazine capacity.

Applications of 12.7 x 42 Ammo

The 12.7 x 42 cartridge is chosen for the following applications:

  • Big Game Hunting: .50 BEOWULF® ammo is ideal for hunting medium to large animals, such as elk, hogs, and moose, offering deep penetration and significant stopping power.
  • Tactical Operations: It is widely used by law enforcement and tactical units requiring high-energy rounds for barrier penetration and stopping power.
  • Self-Defense: It is effective for personal defense scenarios, providing substantial energy transfer and stopping power.
  • Recreational Shooting: 12.7 x 42 ammo provides an enjoyable shooting experience, characterized by its heavy recoil and distinctive performance.
  • Suppressor-Compatible Loads: Its subsonic variants, such as the 700gr Hard Cast, are designed for suppressed shooting, offering reduced noise levels.
  • Collector’s Interest: This ammunition appeals to collectors and enthusiasts interested in unique, high-caliber cartridges.

 

FAQs

Q. What firearms are compatible with 12.7×42 / .50 BEOWULF®?

Firearms specifically chambered for .50 BEOWULF® or conversions rated for 12.7 x 42 may be used. Always verify stamped chambering and consult a qualified gunsmith before firing any premium 12.7 x 42 ammo.

Q. What box sizes do you offer?

We offer 12.7×42 ammo in 20-round boxes

Q. How is Steinel testing penetration and expansion?

Steinel evaluates terminal performance using calibrated ballistic media and controlled test protocols; we publish summary results for each hunting- or barrier-oriented SKU. Our process emphasizes repeatability and conservative interpretation of results.

Q. What environmental factors affect .50 BEOWULF® ballistics the most?

As with all heavy-bullet, short-range cartridges, bullet weight and velocity have the biggest impact on point-of-impact. Heavier, 12.7 x 42 loads are less sensitive to wind but may have a significant level of drop compared to light-for-caliber loads. As with all ammunition, shooters benefit from range testing in your local conditions before deployment.

Q. Are there special wear or maintenance considerations for rifles capable of firing 12.7 x 42 ammo?

Big-bore rounds produce increased muzzle blast and fouling relative to smaller calibers. Inspect the barrel, gas system, and bolt face regularly. Use recommended bore cleaners and brushes rated for the large bore diameter. Watch extractor and headspace wear during high-volume use to maintain reliable function with 12.7×42 ammo.