6 Arc Barrel Length Chart, Because of the higher pressure (60,000psi-62,000psi), this data is NOT to be used in gas-operated firearms. What is the best barrel length for 6mm ARC There are different lengths of 6mm ARC barrels available, each with its own advantages and disadvantages. The most versatile barrel length is 16 to 18 inches, as it maintains high performance while offering a more compact size. Find the best 6mm ARC barrel for your build — in stock & ships next business day. 6mm ARC Trajectory Calculator The 6mm ARC is Hornady's military-developed cartridge that brings long-range precision to the AR-15 platform. When choosing a barrel length for your firearm, it’s important to consider what you want to achieve with it. Free printable 6mm ARC ballistics charts. Is the 6mm ARC good for hunting? Accuracy and terminal ballistics are the cornerstones of Hornady Precision Hunter ammunition. 7 inches of drop at 200 yards, 13. Post what you have and ACTUAL recorded velocities. Max pressure is a mild 52,000 psi to ensure a 6mm ARC AR-15 has a long service life. With a 105-grain bullet at 2,750 fps and a 100-yard zero, expect about 3. Longer barrels (over 20 inches) will Feb 10, 2017 · In addition, I've looked at bullet and powder manufacturer's charts such as the one that WeR0206 postedbut again, with the same outcome. May 30, 2025 · Here is a consolidate summary of all the rifle cartridges that are currently recognized by SAAMI. That can make or break the performance of your rifle. Criterion, Proof Research, Ballistic Advantage & more compared. Oct 25, 2022 · Checking to see if anyone has real world data for 6 ARC velocities for 20", 22", and 24" barrels in an AR. com. Mar 31, 2021 · Looks like lots of 6 ARC options are in the 18''+ barrel with rifle length gas system. For example, you’ll want maximum accuracy and range if you’re a long-range shooter or hunter. 62x39 load, and actual ballistic performance may vary depending on bullet weight, lot, barrel length, and environmental conditions while shooting. The 6mm ARC also shares the thicker 0. I'm looking for real world 6mm ARC gas gun muzzle velocity data with 103-grain ELD-X tipped handloads fired from 18" and 20" barrels. What is the best barrel length for 6mm arc? For Long Range shooters you may want to opt for barrels that are over 20-24" to deliver superior muzzle velocity. 5 vs 16 vs 20 vs 24 inches and choose the right AR-15 setup for your build. Minimum Maximum 6mm ARC (Bolt Gun) What barrel length is best for 6mm ARC? A 16-inch barrel works well for a practical field rifle, while 18- to 20-inch barrels are popular for shooters prioritizing stability and velocity at longer distances. 5" This data is for bolt-action rifles only. 56x45mm. Note: The preceding chart is an example of a 17 HMR load. 62x39 trajectory looks. 038-inch rim of the 5. Actual ballistic performance varies depending on bullet weight, lot, barrel length, and environmental conditions. . 308 and would like to replace it with a lighter, smaller and handier 6 ARC. Feb 27, 2026 · Below is a sample 7. 17 HMR Velocity Criterion, Proof Research, Ballistic Advantage & more compared. Some cartridges do not have either a PSI or CUP listed, and these values are Apr 30, 2026 · Shoulder angle is 30 degrees, case length is 1. 49 inches and it has an overall cartridge length of 2. Explore most asked questions of a 6MM ARC upper, including ballistic performance, barrel options, and compatibility with AR platforms for precision shooting. 62x39 bullet drop chart that gives you a general idea of how the 7. Apr 24, 2026 · Here is a sample 17 HMR bullet drop chart to give you a general idea of the 17 Hornady Magnum Rimfire’s trajectory. Shop 338 ARC uppers & barrels at AR15Parts. 5mm Grendel which is significantly more robust than the 0. I sold my LMT MWS 16'' . Feb 27, 2026 · Interested in 6mm ARC ballistics? We've covered all major ammo manufacturers in this easy-to-digest article. 475" Primer: Fed 205 Twist Rate: 1:7. 059-inch rim of the 6. May 11, 2023 · When considering the 6mm ARC round, one important consideration to remember is the 6mm ARC barrel. 26 inches. Case: Hornady Barrel Length: 24" Case Trim Length: 1. The purpose of this is to provide a quick glance of cartridge specs for the curious mind. 9 inches at 400 yards. Everything about the 338 ARC cartridge — ballistics, barrel lengths, upper builds & ammo selection. Note: The chart above is an example of one 7. The SAAMI Maximum Average Pressure (MAP) is listed in both the Copper Units of Pressure (CUP) and the Pounds per Square Inch (PSI). Feb 28, 2026 · What’s the best 6mm ARC barrel length? Compare 12. In fact, according to Hornady, 18 inches is the optimal barrel length for military applications. 4 inches at 300 yards, and 29. Based on our experience and feedback from other shooters, 16 to 18 inches is the ideal 6mm ARC barrel length if you want a gun that does it all.
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