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Bartlein Barrels

Bartlein Barrel - SS, .375 Cal, B# Custom, 7.5 twist, 37" blank, 5R

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Bartlein Barrels: Precision Engineered for Superior Performance

Bartlein Barrels: Mastering Precision with SS .375 Cal B# Custom Barrel

Introduction to Bartlein Barrels' Precision Engineering

Bartlein Barrels introduces the SS .375 Cal B# Custom barrel, a testament to advanced engineering and manufacturing precision. This barrel features a 7.5 twist, a 37'' blank, and the innovative 5R rifling, designed to deliver unmatched performance for serious shooters and hunters.

Impact of Contours on Barrel Weight and Performance

The choice of barrel contour significantly affects both the barrel's weight and its shooting performance. While heavier contours provide stability and reduce the tendency for the barrel to move or wander as it heats up, Bartlein Barrels emphasizes that their single point cut rifling technique minimizes internal stresses, making the choice of contour less critical compared to barrels manufactured using other methods.

The Superiority of Single Point Cut Rifling

Bartlein Barrels stands out by exclusively employing single point cut rifling, ensuring that each barrel is free from the residual stresses that can compromise accuracy. This method not only enhances barrel longevity but also ensures consistent performance across all shooting conditions.

Enhancing Barrel Performance with Fluting

Fluting a barrel is not just about aesthetics; it serves practical purposes too. It reduces weight, aids in quicker cooling by increasing the surface area, and can potentially impact the barrel's harmonic vibrations. Bartlein Barrels meticulously designs their fluting to ensure it enhances performance without compromising the barrel's structural integrity.

The Significance of 5R Rifling

The 5R rifling pattern is celebrated for its ability to reduce bullet deformation, thereby enhancing accuracy and bullet performance. This rifling style, characterized by its unique land-and-groove profile, ensures a gentler engagement with the bullet, minimizing resistance and improving the bullet's flight path.


Bartlein Barrels' commitment to precision, innovation, and quality sets their SS .375 Cal B# Custom barrel apart in the world of competitive shooting and hunting. By focusing on advanced rifling techniques and thoughtful barrel design, Bartlein ensures that shooters can achieve the highest levels of accuracy and performance. Embrace the precision of Bartlein Barrels and elevate your shooting experience.

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Additional Information

Caliber / Bore Size:
.375 Cal
B# Custom
37in Blank
Stainless Steel
Twist Rate:
1 in 07.50in
Groove Type:
# Grooves:
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