Bartlein Barrels: Precision Engineering for Optimal Shooting Performance

Bartlein Barrels, renowned for our precision single-point cut-rifled barrels, introduces the custom .375 Cal B# Custom barrel. Featuring a 10 twist, 37'' blank, and innovative 5R rifling, this barrel is designed for unmatched accuracy and performance.

Understanding Barrel Contours and Performance

Barrel contours significantly impact the weight and performance of a rifle. Heavier contours can better resist movement and wandering as the barrel heats up, maintaining accuracy during extended shooting sessions. However, at Bartlein, we emphasize that the precision of single-point cut rifling minimizes the importance of contour compared to button-rifled barrels.

The Superiority of Single-Point Cut Rifling

Single-point cut rifling, a hallmark of Bartlein Barrels, ensures no stress is induced into the barrel, promoting uniformity and accuracy. Unlike button rifling, this method does not compromise the barrel's bore sizes, ensuring consistent performance even after threading for muzzle brakes or suppressors.

Why Fluting Matters

Fluting not only enhances a barrel's aesthetics but also contributes to weight reduction, improved cooling through increased surface area, and potentially harmonic benefits. While fluting depth must be carefully controlled to avoid vibration issues, it remains a popular customization for its blend of functional and visual appeal.

Choosing the Right Rifling: The Advantages of 5R

The 5R rifling pattern offers several benefits over traditional styles, including reduced bullet deformation and enhanced bullet flight. This rifling style minimizes bullet jacket distortion, aiding in accuracy and reducing the likelihood of bullet failure. While most bullets perform excellently with 5R rifling, certain short jacket 6mm bullets may not, highlighting the importance of matching bullet design to rifling style.

Expert Craftsmanship for Every Shooter

At Bartlein Barrels, we are committed to providing shooters with the highest quality barrels, tailored to meet the needs of competitive shooting, hunting, and precision rifle building. Our .375 Cal B# Custom barrel with 5R rifling exemplifies our dedication to innovation, performance, and accuracy.