Best Barrel Length For 350 Legend: Faxon Firearms

When it comes to the increasingly popular 350 Legend cartridge, determining the optimal barrel length is essential for maximizing its performance and achieving desired results.

In this article, we’ll dive into the intricacies of barrel length and explore the factors that influence the effectiveness of the 350 Legend cartridge.

Best Barrel Length for 350 Legend

But first, let’s answer the question everybody reading this article wants to know.

What is the best barrel length for 350 Legend?

The best overall barrel length for 350 Legend is 16 inches.

Faxon Duty Series 16", Gunner Profile, 350 Legend

at Faxon Firearms
Prices accurate at time of writing

When it comes to the 350 Legend cartridge, the choice of barrel length plays a significant role in determining its performance for specific shooting scenarios.

Typically, barrels longer than 22 inches are not preferred for long-range shooting with the 350 Legend due to diminishing returns.

On the other end of the spectrum, shorter barrels, such as 10.5 inches, are commonly utilized for brush guns or close-quarter situations, particularly when utilizing the AR platform.

Surprisingly, some shooters even opt for barrel lengths as short as 9 inches for the 350 Legend, accepting a loss of roughly 240 feet per second compared to a 16-inch barrel.

However, it is important to note that these shorter barrel lengths are not recommended for shots extending beyond 200 yards.

Did You Know -> A 350 Legend revolver with a 12-inch barrel will shoot through a pistol-rated armor vest while the mighty 44 Magnum will not.

350 Legend Ballistics By Barrel Length

By understanding the relationship between barrel length, velocity, accuracy, and maneuverability, we aim to unveil the best barrel length for the 350 Legend.

Barrel Length (inches)Muzzle Velocity (fps)
7 inches1,905
9 inches2,033
12 inches2,167
14 inches2,215
16 inches2,269
20 inches2,336
22 inches2,335
24 inches2,370


Based on what we’ve seen in these results, it’s clear that a longer barrel leads to a higher velocity. Now, let’s dive into a discussion about the best 350 Legend Barrels currently available in the market.

Faxon Gunner Profile AR-15 Barrel

Faxon Firearms is expanding its highly popular Gunner line of barrels to incorporate the new 350 Legend straight wall cartridge.

The Gunner profile represents a fusion of two exceptionally performing, barrel profiles namely the Gov’t and Pencil profiles. By combining the durability of the Gov’t profile with the weight reduction and improved maneuverability of the Pencil profile, Faxon’s Gunner profile achieves an optimal balance.

This balance effectively shifts the rifle’s center of gravity toward the shooter’s body, reducing fatigue and enabling extended periods of shooting, training, or hunting without strain.

When it comes to value, Faxon Firearms barrels stand at the pinnacle. Each barrel is meticulously manufactured in-house at their facility in Cincinnati, Ohio.

Faxon Duty Series 20", Gunner Profile, 350 Legend

at Faxon Firearms
Prices accurate at time of writing

Rigorous quality control measures are implemented throughout the production process, starting with thorough stress relief and air-gauge testing. Furthermore, every barrel undergoes an 11-degree target crown to ensure superior accuracy.

Faxon Firearms only employs the finest materials, selecting either certified 4150 Mil-Spec steel or 416-R Stainless for their barrels.

The manufacturing journey includes a series of comprehensive tests at each stage, culminating in the application of a Nitride finish and a final meticulous inspection.

To guarantee precise headspace, each barrel is individually checked using precision PTG gauges.

Faxon Firearms’ commitment to excellence is evident from the inception of their barrels, making them an unrivaled choice for shooters seeking unmatched quality and performance.

Even when shooting at distances of up to 200 yards, the Faxon Gunner Profile barrel demonstrates exceptional precision.

The Faxon .350 Legend barrel is available in three different lengths:

  1. 12.5-inch Gunner Profile/ Pistol Length (Best for AR Pistol Platforms)
  2. 16-inch Gunner Profile/ Carbine Length (Best Overall Barrel Length)
  3. 20-inch Gunner Profile/ Carbine Length (Best For Hunting larger game out to 200 yards)

350 Legend Gunner Barrel Specs

  • Barrel Material: 4150 CMV
  • Barrel Type: Button Rifled
  • Barrel Caliber: 350 Legend SAAMI
  • Barrel Twist: 1:16
  • Barrel Profile:  Gunner
  • Barrel Gas System: Carbine
  • Inside Finish: Nitride
  • Outside Finish: Nitride
  • Muzzle Thread: 1/2×28
  • Gas Block Diameter: .750"
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: Big Bore
  • Magnetic Particle Inspected
  • 11-degree Target Crown

350 Legend Barrel Length FAQ

What is the best barrel twist rate for 350 Legend?

The general recommendation is a 1:16 twist rate for most 350 Legend ammunition, as it provides good stability for a wide range of bullet weights commonly used in this cartridge. However, if you plan to primarily shoot heavier bullets, such as those weighing over 180 grains, a slightly faster twist rate of 1:14 or even 1:12 may be more suitable to ensure proper stabilization and accuracy.

What is pistol length 350 Legend barrel?

The pistol-length barrel for the 350 Legend cartridge typically refers to a shorter barrel length commonly used in AR pistol configurations. In the case of the 350 Legend, a pistol-length barrel typically ranges between 9 and 12.5 inches in length.

This shorter barrel length is often preferred for its compactness and maneuverability, making it suitable for close-quarters shooting or when portability is a priority.

Faxon Duty Series 12.5", Gunner Profile, 350 Legend

at Faxon Firearms
Prices accurate at time of writing

How far is 350 Legend accurate?

The accuracy of the 350 Legend cartridge depends on several factors, including the firearm, ammunition, shooter skill, and environmental conditions. Generally, the 350 Legend is considered accurate within practical hunting distances, typically up to around 200-250 yards.


While shorter barrels offer enhanced maneuverability and compactness, longer barrels tend to optimize velocity and ballistic performance.

For versatile applications, a barrel length between 16 and 20 inches strikes a balance between portability and performance, delivering solid accuracy and muzzle energy.

However, specific shooting needs, such as hunting or close-quarters engagements, may call for shorter barrels ranging from 9 to 12.5 inches.

Ultimately, it is most important to align the barrel length with the intended use, ammunition preferences, and type of firearm to maximize the potential of the 350 Legend cartridge.

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