Bartlein Barrel - SS, 6mm, B#12 Heavy Palma, 8 twist, 29'' blank, 5R

Discover the impact of barrel contours and rifling on your shooting performance with Bartlein Barrels. We provide insights into how these factors influence your shooting experience and the advantages of our single point cut rifling over button rifling.

Do Contours Affect Barrel Weight?

Yes, barrel contours do affect weight. A heavier contour can help resist barrel movement and wandering as it heats up during shooting. Bartlein Barrels uses single point cut rifling, which eliminates stress in the barrel blank, making contour less critical compared to button-made barrels.

Do Heavier Contours Shoot Better?

Heavier contours are generally preferred as they help reduce recoil and shooter fatigue, allowing for more rounds to be fired comfortably. However, lighter contours can also perform exceptionally well in specific cases.

Should Suppressors be Put on Any Barrel Contour?

No, suppressors should not be used on lighter barrel contours. Suppressors work better on heavier barrels, as they affect the harmonic vibrations. We recommend using suppressors with at least a medium palma contour.

Why is Single Point Cut Rifling Better?

Single point cut rifling, as employed by Bartlein Barrels, minimizes stress in the barrel blank, ensuring consistent bore sizes and threading for muzzle attachments. This leads to enhanced accuracy and reliability compared to button rifling.

Why is Fluting a Barrel Important?

Fluting a barrel has several benefits, including reducing weight without altering the contour, improving barrel cooling by increasing surface area, and adding an appealing aesthetic to the barrel.

Questions about Fluting:

• Minimum Depth: Fluting should not be too deep to avoid harmonic and vibration issues, which can affect accuracy.
• Stiffness: Fluting may make the barrel less stiff compared to an identical non-fluted barrel, depending on how stiffness is measured.

Why is the Rifling on a Barrel Important?

The rifling on a barrel significantly impacts bullet performance. Bartlein Barrels offers three types of rifling, including the 5R style, which reduces bullet deformation, enhancing accuracy and barrel life.

Additional Benefits of 5R Rifling:

The 5R rifling's gentler angle on lands and odd number of lands in the bore reduce bullet distortion during the transition from the case into the rifling, helping to prevent bullet failure.