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Bartlein Barrels

Bartlein Barrel - SS, 6mm, B#9 Heavy Varmint, 10 twist, 29'' blank, 5 Groove

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Bartlein Barrel SS 6mm B#9 Heavy Varmint: Precision Rifling for Superior Shooting

Bartlein Barrel SS 6mm B#9 Heavy Varmint: Elevating Shooting Precision

The Bartlein Barrel SS 6mm B#9 Heavy Varmint, with its 10 twist, 29'' blank, and 5 Groove rifling, represents the pinnacle of barrel design for shooters who demand the utmost in accuracy and performance. Understanding the nuances of barrel contours, the benefits of single point cut rifling versus button rifling, and the role of fluting can significantly influence your shooting experience.

How Barrel Contours Impact Weight and Performance

Barrel contours directly affect the weight and, subsequently, the performance of a rifle. Heavier contours, such as the B#9 Heavy Varmint, can provide stability against barrel movement or wandering as it heats up, a common issue in barrels with residual stress from button rifling. Bartlein Barrels, utilizing single point cut rifling, minimizes stress, making contour selection a more personalized choice rather than a strict performance criterion.

The Superiority of Single Point Cut Rifling

Single point cut rifling, a hallmark of Bartlein Barrels, ensures minimal stress on the barrel, preserving the integrity of the bore and enhancing accuracy. This method allows for the use of lighter contours without compromising on performance, offering versatility for shooters who prioritize maneuverability alongside precision.

Choosing the Right Barrel Contour and Rifling

While heavier barrels might traditionally provide better shooting performance due to reduced recoil and shooter fatigue, Bartlein's approach demonstrates that with the right manufacturing techniques, lighter contours can achieve equivalent, if not superior, results. The choice between heavier and lighter contours thus becomes one of personal preference and shooting style.

Fluting: A Balance of Aesthetics and Functionality

Fluting enhances a barrel's aesthetic appeal and functional performance by reducing weight and improving cooling. However, it's essential to consider the depth of fluting to avoid compromising the barrel's harmonic stability. Bartlein ensures optimal fluting that enhances performance without sacrificing accuracy.

Rifling: The Heart of Accuracy

The 5 Groove rifling in Bartlein's barrels is designed to provide superior bullet stability and accuracy. Bartlein offers various rifling styles, including 4-groove, 5R, and Conventional-5, each with unique advantages. The 5R rifling, in particular, is noted for reducing bullet deformation and enhancing flight stability, making it a preferred choice among precision shooters.


The Bartlein Barrel SS 6mm B#9 Heavy Varmint exemplifies the cutting-edge of barrel technology, offering shooters an exceptional tool for achieving unparalleled accuracy. Whether you are a competitive shooter or a hunting enthusiast, understanding the impact of contours, rifling, and fluting on your barrel's performance can significantly enhance your shooting precision and overall experience.

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Additional Information

Caliber / Bore Size:
B#9 Heavy Varmint
29in Blank
Stainless Steel
Twist Rate:
1 in 10.00in
Groove Type:
# Grooves:
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