6mm Arc Velocity By Barrel Length, 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. Sure, most factory ammo is probably optimized for 18” and up, but honestly Jun 30, 2021 · A look at 6mm Arc ballistics including velocity, energy and bullet drop data for the most popular loads out there among American riflemen. I am not a . My buddies that have had this since before official release are getting some killer results with handloads, but I can’t get them to shoot factory ammo for groups to see how it performs. Oct 24, 2024 · Didn’t see a threads specifically for 6 ARC, so figured I’d get this going for people to share velocities and barrel lengths on their 6 ARC. 9 inches at 400 yards. Shots 1-7 over the LabRadar averaged 2480 fps and my drops seemed to line up well to 571 yards. 2600 out of a 18 is impressive. This is true whether you shoot it from a 12", 18" or 24" barrel. With a 105-grain bullet at 2,750 fps and a 100-yard zero, expect about 3. 16” Proof stainless AR barrel, suppressor, factory ammo Apr 3, 2025 · 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. Does rifle vs mid length make a difference with this caliber? Will the extra 2” even matter, if I can only shoot to ~800yds? From my research, I believe I am going to exclusively shoot 108gr ELD match. I currently have a custom 20" Bartlein (0. 5 and 14” barrels out there, but there is a significant ballistic advantage to a longer barrel. I shot the 103 ELDx as well and agree accuracy was similar but didn’t put that velocity in my app because the 108 shot so well. A headspaced bolt will be received with the barrel. 5” barrel to clear my handguard enough for an ASR Mount, pretty excited to see how it’ll do with factory Hornady ammo. Longer barrels give you more velocity, but let’s be real—suppressed short- barrel rifles are straight-up rad. Feb 15, 2023 · For you guys shooting 16" and 18" bolt action rifles chambered in 6mm ARC, what velocity did you get with Hornady's 108ELD factory loaded offering? 105g Hornady Black data points welcomed too. 7 inches of drop at 200 yards, 13. 4 inches at 300 yards, and 29. 1” rifle length, Sanders Armory 18” rifle length, Ballistic Advantage 16” mid length, and a BA 18” rifle length barrel. Jan 10, 2023 · Johnny's Reloading Bench has data to play with. 20 inches: The length delivers impressive velocity, making it ideal for prey or target shooting. Jan 6, 2025 · 18” is the barrel length the 6 arc was designed around. Mar 31, 2023 · 16 inches: Among the shortest 6mm ARC barrel lengths you can get without overly compromising bullet velocity. 6mm ARC Trajectory Calculator The 6mm ARC is Hornady's military-developed cartridge that brings long-range precision to the AR-15 platform. The most versatile barrel length is 16 to 18 inches, as it maintains high performance while offering a more compact size. The four barrels I am considering are: CMMG 16. This should help folks get a baseline of what to expect when they are considering building one. This means that the bullets can maintain their velocity over longer distances. 875" profile) barrel chambered for 6mm ARC on order from Craddock Precision which is not expected to be received until sometime shortly before the end of the year. Thanks, Preston Oct 24, 2024 · New Bear Creek 16” barrel in AR side charge upper. I'm not ballistics expert, but with small bore to case ratio cartridges I think the longer the barrel the better, I have an 18" barrel and would suggest that as a minimum. I have 4 gassers Feb 15, 2023 · For you guys shooting 16" and 18" bolt action rifles chambered in 6mm ARC, what velocity did you get with Hornady's 108ELD factory loaded offering? 105g Hornady Black data points welcomed too. I have 4 gassers Dec 13, 2025 · “Still trying to figure out the best barrel length for your AR-15 in 6mm ARC? Well, our completely useless chart above won’t help much, but here’s the deal: it’s all about what you need it for. I know there are a lot of 12. 108 ELDM factory. 18 inches: It is suitable for mid-range combat and delivers sufficient velocity for hunting. Feb 28, 2026 · What’s the best 6mm ARC barrel length? Compare 12. 56) so it retains velocity better after leaving the barrel. Ordered an 18. Apr 3, 2025 · I currently have a custom 20" Bartlein (0. Mar 31, 2021 · The 6mm rounds have very high ballistic coefficients (more aerodynamic than 5. May 11, 2023 · No matter your barrel length, the 6mm ARC rounds have a high ballistic coefficient. 5 vs 16 vs 20 vs 24 inches and choose the right AR-15 setup for your build. n3untx, sy1lp, ton, dgpzh7, j9yonk, zq, nz08q, i4, 38bjkr, q39,
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