The 6mm ARC delivers substantially less recoil allowing shooters to spot their own shots. This variant uses an Ackley Improved fire formed case with less tapering and a 40-degree higher shoulder permitting a larger powder capacity. The 6.5 Creed pushes a 140 with a BC of .618G1 about 200fps faster than the 6.5 Grendel pushes the 123’s, again, with a .506G1. Sell tons of ammo and barrels at my shop. : 0.250 GIVEAWAY: Win a Custom, James Bond-Inspired Walther PPK Pistol! Now we’re talkin’. AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry. Hornady states: “Hornady® is proud to introduce the new 6mm ARC (Advanced Rifle Cartridge). The 6mm ARC can also be a suitable chambering for shorter "mini-action" bolt action rifles. I'm curious if Hornady is behind the standardization of this cartridge, the name seems to fit the current convention (PRC vs ARC), and the published velocity utilized a 108gr bullet as opposed to 105gr or 110gr. Fired from the same length 24-inch barrel, a .308 178-grain boat-tail hollow-point with comparable BC and a muzzle velocity of 2,600 fps goes subsonic just beyond 1,000 yards. Custom dies are available but not very cost effective. Based on those velocities and a .536 G1 BC the 6mm ARC should equal or slightly outperform the .308 Winchester with the same length barrel to beyond 1,000 yards in both drop and wind drift. Launching a 6mm ARC from a weapon platform that weighs a third less? Already adopted by a DoD entity, the all-new Hornady 6mm ARC (Advanced Rifle Cartridge) brings serious flexibility to an AR-15 cartridge. I have the 6x45 and love it best I can do is an 87 grain Berger thing is dead on sick but I have not tried anything heavier just wont feed anyway but the cartridge is awesome and I would not mind trying a 6mm Grendel but when this stuff going on flys over. I installed an adjustable gas block and a new Faxon bolt, and got him all tuned up and back in action. It was snowing sideways when this writer broke his first shot with the new Hornady 6mm ARC (Advanced Rifle Cartridge). Said he had a couple thousand rounds on the gun, all suppressed. The 6mm ARC achieves substantially better ballistics than the 223/5.56. The ARC also has less case taper than the Soviet case. It is also very easy to assemble an upper to accept the 6mm ARC and you can use an AR-15 lower that you already have laying around in your safe. 6mmAR upper with 2750 fps Berger bullet and .566 Ballistic Coefficient. https://www.ammoland.com/2020/06/6mm-arc-round-to-little-to-late The 6mm ARC offers a 30 to 35% lighter-weight package (gun and ammo). I was an early adopter and chose it for my first AR as for me personally it was a great all-around job for me. The big thing with these is when you push them hard velocity-wise, bolts have been known to break. … Carrying more ammo to the fight in the same loadout? AR-15. Once the build is done I'll post up some photos as well as load development data. Light and able to go the distance, Hornady's new 6mm ARC cartridge adds another arrow to the rifleman's quiver. As an offspring of the Soviet 7.62×39, the 6mm ARC gets some of the shared battlefield cred, too. About AR15.COM. The 6mm ARC can also be a suitable chambering for shorter "mini-action" bolt action rifles. : 2.085" G1 B.C. It should not be confused with Hornady‘s 6mm ARC. Guide to 6mm Grendel 6mmAR for AR15 match shooters. I'll give a few parameters, in that, barrel has to be more of a typical AR barrel length … And that’s the subject of this article: chronicling my first loads (I did not have factory ammunition to test) and … Hornady’s Neal Emery invited me to Wyoming in February to help a local rancher with an ongoing coyote problem. I know there were some issues a long time ago but I assume there has to be a few solid options now. How are the bolts holding up long term? As an offspring of the Soviet 7.62×39, the 6mm ARC gets some of the shared battlefield cred, too. Recently tested, selected and fielded by a specialized group within the U.S. Department of Defense for its multipurpose combat rifle program, the 6mm ARC is a truly versatile cartridge that maximizes the potential of the AR-15 platform.” I broke a couple Grendel AA factory bolts and had a buddy that broke a JP supplied bolt. Distance is the forte of the 6 mm ARC.If you’re committed to the AR-15, once the range extends much past 500 yards, there’s currently no better option. While the 6.5mm Grendel was designed around .264-inch projectiles running from 95 to 144-grains, the cartridge is at its best with projectiles weighing from 107 to 123 grains. Sale. Post was not sent - check your email addresses! The better velocity of good 6mm's beats the slower, but good wind drift of 6.5's. Gear reviews (.243 bullets, 6mm Norma, gun barrels, … The case length of 1.49″ results in a lot of bullet space (.77″ or 3.16 calibers) which will allow loading projectiles with very long ogives and great external ballistic performance. Hornady Sub X: Subsonic Expanding Ammo Goes .30-30, 9mm, and More. Range Report 6mm ARC vs 6 PPC vs 6 Grendel. Early testing indicates a 1:7.5 inches twist rate is ideal for stabilizing long bullets in the 6mm ARC. A loaded round’s overall length is 2.26 inches; this fits nicely within a STANAG AR-15 magazine and runs flawlessly with a 6.5 Grendel follower installed. The 6mm ARC’s parent case is the 6.5 Grendel, which takes its lineage from the .220 Russian and 7.62mm Soviet. Is anyone else shooting a 6G? Each Stainless Steel Barrel is precision machined by Ballistic Advantage, with a 1-7 twist and a bead blast finish, and in the case of the 18 inch model an optional black nitride finish. So here's the rub - the 6mm ARC is essentially very close to a 6mmAR, but the 6mm ARC gives up 2 gr of water capacity to the 6mmAR (6mm ARC has a 34 gr water capacity vs 6mmAR that is 36 gr of water capacity) and this occurs because the body of the 6mm ARC case is about .027" shorter than the 6mmAR, and the overall case length is .030" shorter. I Don’t remember h name brand of the gun, but it was a factory Grendel. The AR-15 platform features a higher magazine capacity. : 2.085" G1 B.C. They run neck to neck to about the 600 yard line, where the 6mm ARC starts to pull away. There is no mention which group is using the cartridge but you can probably guess… Read More »6mm ARC vs 6.5 Grendel: Crunching the Numbers 223/5.56 The 6mm ARC achieves substantially better ballistics than the 223/5.56. The 6mm AR is a centerfire wildcat cartridge initially designed by Robert Whitley for long-range performance in an AR-15 rifle. Separate data will be provided for bolt action firearms. "At first I thought 6mm ARC just the 6mm AR put into production (Grendel necked down to 6mm), but the cartridge dimensions are all 1% to 2% smaller than the Grendel, with a slight body taper where the Grendel has none." Meet The New Kid On The Block Hornady just announced the arrival of the 6mm Advanced Rifle Cartridge a few days ago. It will push 105gr bullets around 2700-2750fps in gas gun and probably faster in bolt gun. The various 6mm cartridges have been based on a multitude of case sizes, including (from left) 6mm-221 Fireball, 6mm-222 Rem., 6x45 (6mm-223 Rem. the arc is only .030 shorter at the shoulder then the lbc/grendel case, it wouldn't surprise me if you cant take arc cases and fireform and blow them forward like a ackley improved or 6mm ar turbo and use them in the Lbc. You would still be able to fire the ARC from the 6mm AR setup. Always wondered why they didn’t just do a 6mm Grendel. The 6mm AR is a necked down 6.5 Grendel, or 264lbc, case to 6mm using 6mm PPC dies set 0.070 off the shell holder. By the numbers, the 6mm ARC case head measures 0.440, just 0.005 smaller than a 7.63×39 case. Based on what I'm reading. The cartridge has a water capacity of 36 gr. These are readily available and of known quality. For an ordinary AR-15 chambered for the .223 Rem/5.56mm NATO, a new barrel, magazine and bolt are required to convert to the 6mm ARC. Wonder what an 80 tsx or a 55bt will do out of it? Sorry, your blog cannot share posts by email. The shoulder on the 6mm ARC is moved back a bit from the 6mmAR (I'm guessing so 108gr ELDs will fit perfectly at mag length), so the ARC will have a bit less capacity and be a little slower. Same neck length as the AR, same shoulder angle, just .029-.030 further back on the headspace. This new cartridge delivers less felt recoil than larger short-action-based cartridges, yet takes full advantage of modern, heavy-for-caliber 6mm bullets that provide excellent accuracy … The .224 AR is similar to the 6mm AR, except that it is set up to shoot the widely available .224 diameter bullets. That pushed-back shoulder does reduce case capacity (and velocity), but we assume Hornady did that to create a shorter, proprietary chamber so people could not simply neck-down Lapua 6.5 Grendel brass, as has been done for years with Robert Whitley’s outstanding 6mm AR … Some of the benefits of the ARC case design is that its non-rebated rim feeds well in detachable and internal box magazines. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Other 175- to 178-grain .308 bullets go subsonic at shorter ranges. It uses the same design method as the 6.5 Creedmoor; this results in excellent and consistent accuracy from one gun to another and load to load. 6mmBR.com is the best guide for 6mm Benchrest precision shooting, complete with 6BR FAQ, Reloading Data, Shooter Message Boards. The new 6mm ARC is basically a 6.5 Grendel necked down to 6mm, with the shoulder moved back around .030″. Compared to all of them, the 6mm option has 3 feet less drop. Distance is the forte of the 6 mm ARC.If you’re committed to the AR-15, once the range extends much past 500 yards, there’s currently no better option. These are readily available and of known quality. As they have the same casehead diameter the 6mm ARC utilizes the same AR-15 bolt as the 6.5mm Grendel. During the hours we spent together when the dogs weren’t cooperating, I learned that a yet unrevealed DoD entity adopted the 6mm ARC for combat operations as a replacement for the 7.62x51mm NATO, (.308 Winchester in civilian terms). The 6mm ARC delivers comparable performance from a wider assortment of bullets, making it a more versatile choice. Expect more on the 6mm ARC in the upcoming 2021 edition of our sister publication, Tactical Life’s Complete Reloading magazine. While doing a research for another article, I visited the New Cartridge & Chamber Drawings page of SAAMI website and bumped into a new SAAMI accepted cartridge called 6mm Advanced Rifle Cartridge (6mm ARC). 223/5.56. The 6mm ARC is unique among rifle cartridges in that it fits in an AR-15-pattern action, functions reliably out of standard-capacity 24- or 17-round magazines, and remains supersonic beyond 1,000 yards in a standard atmosphere. Reviewing the ballistics comparison between the 6mm ARC and a few .308 loads, it is evident the smaller cartridge provides some advantages. I have read the Terms of Use, Privacy Policy, and Cookie Policy, and I hereby agree to those terms. The 6mm ARC starts out a little hotter than the .308 but surprisingly maintains its speed above the heavier cartridge out to a thousand yards. 22411 C.O.L. All you need is a 6mm ARC … Call me in 3-5 years, if it's a hit I'll buy. I've built two 6MM grendel/243LBC AR's now and they are quite a bit more accurate than my 6.5 Grendels that I also have. The idea of a 6mm cartridge with a case capacity in the 27-30 gr range out of the AR-15 is a great idea with a ton of versatility. Mag. A-15 M 6mm ARC Complete Upper. Once compared to other similar calibers, you truly see the advantage the 6mm ARC delivers. This 6mm ARC reloading data is intended for use in gas guns (e.g. I had a customer come in last week with two lugs broken off of his Grendel bolt. [ARCHIVED THREAD] - 6mm Hagar vs. 6mm AR. The 6mm ARC delivers substantially less recoil allowing shooters to spot their own shots. The 6mm ARC is so close to the 6mm Grendel(wildcat) which is commonly referred to as the 6mm AR(Robert Whitley’s wildcat, the 30 degree not the 40 degree version) it just has a slight decrease in diameter at the start of the shoulder of 0.0008 and the shoulder is bumped back 0.0249 and the length trimmed 0.027. The 6mm ARC has more match bullet options and is a better long-range performer. The biggest differences between the 6mm PPC and the 6mm ARC are the shoulder angle (30° for 6mm PPC, and 40° for 6mm ARC), and the base-to-datum spec for the shoulder (6mm ARC is pushed back further). The comparison between the 6.5 creed and 6.5 Grendel isn’t apt for the 6.5 Grendel vs. 6mm ARC and other 6mm Grendel variants. Starting to see where this is going? It was a great long range target and could easily be used for hunting. Hornady announced the launch of its new 6mm ARC cartridge in June 2020, giving AR-15 owners a new round that provides enhanced capabilities. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Since Hornady was the first ammo maker to get behind the 6.5 Grendel in a big way, it was an easy transition to the new round. While the 6.5mm Grendel was designed around .264-inch projectiles running from 95 to 144-grains, the cartridge is at its best with projectiles weighing from 107 to 123 grains. I think the case would benefit from a lighter bullet while keeping high BC, so I hope this catches on. When I got to Wyoming, Emery was a lot more forthcoming about the 6mm ARC than he had been during our conversation at SHOT Show 2020. This table really shows the difference between the 6.5 Grendel and the 6mm ARC. A rifle like the CMMG RESOLUTE 6mm ARC rifle, which combines a rifle length gas system with a 16” barrel will soften recoil even further making it an ideal hunting rifle for smaller shooters. Strange, the Hodgdon load data for the 107 sierra HPBT has the twist rate at 1-14 but Sierra says you need a 1-7 to 1-8. Deviating from Soviet design, the ARC takes on a 30-degree shoulder angle; this is common with other American cartridges, like 6.5 Creedmoor. AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry. This decision won't be easy! I have a Spikes AR lower I built many years ago and it needs an Upper. Do not exceed the maximum charges. It is the Lapua 6.5 Grendel necked down to 6mm. The ARC firing a 108-grain ELD-Match bullet with a .536 G1 ballistic coefficient at 2,750 fps muzzle velocity stays supersonic to 1,150 yards at sea level. I believe that the 6mm Predator is the same as the 6mmAR. 6mm ARC is so new that as of the writing of this article, published load data did not exist! The 6mm ARC is basically the 6.5 Grendel necked down to hold a .243” bullet with the 30-degree shoulder pushed back a smidgen. I know the 6PPC rules and the 6mmAR is made for AR style rifles but has anyone tried the 6mmAR in a benchrest style bolt gun? When I first wanted an AR variant I picked my ideal bullet weight and 6mm seemed to be perfect. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. Trajectory. Hornady is on the front edge of ammo innovation. AR-15’s) and kept to a maximum pressure of 52,000 psi. As a bonus, whereas a typical AR-10 mag could only accommodate 20 rounds of .308/7.62 NATO, the same size magazine could accept 24-25 rounds of 6mm ARC. It delivers less drop, less wind deflection and the ability to shoot accurate groups at much greater distance (1000+ yds). But I wanted to get some real-world results with my new CMMG Endeavor 300 6mm ARC AR-15 published as soon as I could, and therefore embarked on an exciting journey. Once things calm down, I'll have one of these. 58 GRAIN BULLETS SECTIONAL DENSITY: 0.140 DIAMETER: 0.243" 58 gr. Review: Hornady 6mm ARC By parkercountyblog on October 29, 2020 Accuracy-wise, the CMMG consistently shot sub-1″ groups at 100 yds. A casual observer might scratch his head as to why a military unit would want to field a .243 caliber battle rifle, but closer scrutiny clarifies reasoning. The barrel will be heavy and must be threaded so I can mount my OSS 762 Ti suppressor. All Rights Reserved. which is about 6.5 gr more capacity than a .223 Rem. As they have the same casehead diameter the 6mm ARC utilizes the same AR-15 bolt as the 6.5mm Grendel. I hope it comes with a 24+ round magazine that works. The 6mm ARC utilizes the same bolt head size as the 6.5mm Grendel, and 6.5mm Grendel AR-magazines have also been used successfully with the 6mm ARC. In an AR-15 or a small bolt action, both the 6.5 Grendel and the new 6mm ARC make outstanding big game cartridges for a child, with low recoil even when chambered in the lightest of rifles. I am thing about building a 24" 6mm ARC Upper using a Colt Upper. This is "6mm ARC: AR-15 vs AR-10" by Hornady Manufacturing on Vimeo, the home for high quality videos and the people who love them. Case slightly shortened and shoulder moved back to make it compatible with low-drag bullets, even out of an AR-15. In an AR-15 or a small bolt action, both the 6.5 Grendel and the new 6mm ARC make outstanding big game cartridges for a child, with low recoil even when chambered in the lightest of rifles. for the first three shots, but if I fired quickly, it would begin stringing the fourth and fifth shots vertically so that five-shot groups stretched to 1.6″. How The 6mm ARC Goes The Distance: Essentially a 6.5 Grendle case necked down to accept 6mm bullets. Here's my question, in the spirit of the upcoming deer season, if you could only choose between 6.5 Grendel and 6mm ARC to hunt with for the entire season, which caliber would you choose? CMMG has that AR … Tuesday, 18 rifle manufacturers signed on to build 6mm ARC rifles. The 6mm ARC will need wide spread use to prove its potential as an effective long range round (500 meters). The maximum cartridge overall length of 2.26″ (57.4mm) is identical to the max COAL of .223 Remington which means 6mm ARC is designed to be an AR cartridge. Description. A protest or riot breaking out in today's world isn't uncommon, so we turned... by Waysun Johnny Tsai / The AR-15 platform features a higher magazine capacity. A-15 M 6mm ARC Complete Upper. The Hornady 6mm ARC is fairly small rifle cartridge and doesn’t require a great deal of leverage to resize, so you don’t have to fuss when it comes to a reloading press. V-MAX® Item No. The 6mm ARC (Advanced Rifle Cartridge) Hornady Announces - The 6mm ARC (Advanced Rifle Cartridge) 308 Performance in an AR-15 Package. If you have an AR-15 all you need to convert over is a new barrel, bolt head, and magazine. The ARC fits right between PPC and AR. I absolutely love the 6.5 Grendel. Jun 1, 2020, Stay in the know with the latest from the Ballistic newsletter, HEX Optics: Springfield Launches Its Own Optics Brand, 2 Red Dots, MRAD SMR: Barrett Cuts Back on Features, MSRP With New Rifle, WATCH: KelTec KSG Makes Appearance in New ‘Mortal Kombat’ Trailer, WATCH: Savage, PROOF Research Team for 110 Ultralite Rifle, You use of this website constitutes and manifests your acceptance of our. V-MAX® Item No. The 6mm ARC’s parent case is the 6.5 Grendel, which takes its lineage from the .220 Russian and 7.62mm Soviet. 6mm AR Turbo 40 Improved. Any use of this content without express written consent is prohibited. I also got some trigger time with the hot new cartridge. We are told that in comparison to 224V “the 6mm ARC gives hunters the ability to successfully hunt varmints and deer” and “the 6mm ARC produces a larger splash signature that allows shooters to self-spot impacts and make rapid adjustments.” Splendid. Copyright © 1996-2021 AR15.COM LLC. Newer 9130 steel is … Delivering a precision pill accurately more than a football field farther than a standard-issue .308 sniper round—what’s not to like? I have a 20" Bull barrel and a 24" bull barrel rigs. Since I woke up this morning, at least one more has joined the race. 58 GRAIN BULLETS SECTIONAL DENSITY: 0.140 DIAMETER: 0.243" 58 gr. According to their press release, this cartridge has been adopted by a “specialized group” within the U.S. DoD. To my knowledge, by the time of writing this article, no company has announced this cartridge yet. "At first I thought 6mm ARC just the 6mm AR put into production (Grendel necked down to 6mm), but the cartridge dimensions are all 1% to 2% smaller than the Grendel, with a slight body taper where the Grendel has none." About AR15.COM. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Might do good in 600yd matches. At the time there was no "mainstream" 6mm AR cartridge and 6.5 Grendel seemed to be the best choice. With Hornady's release of the 6mm ARC, its long range performance has been discussed. : 0.250 22411 C.O.L. I hadn't seen this posted here yet, but SAAMI added a 6mm Grendel derivative called the 6mm Advanced Rifle Cartridge or 6mm ARC to their newly accepted cartridges list. 6.8 SPC. For more information, please visit Hornady.com. I won't give up my 6.5 Creedmoor as my long range go to, but I sure would appreciate a slightly more economical alternative (not that the Creedmoor is a bank breaker) with reasonable windage performance at distance. I keep watching the mail box for a sharp new JGS Precision Tool 6mm ARC chamber reamer so I can build a new rifle. Its release as a commercial round was presaged by a number of successful 6mm wildcats like the 6mm AR … [ARCHIVED THREAD] - 6mm Hagar vs. 6mm AR. 223/5.56: The 6mm ARC achieves substantially better ballistics than … We're talkin' 6mm AR, .243 LBC, 6mm Grendel, etc. SEE ALSO: Barret Firearms Awarded DOD Contract for REC7 Rifles in 6mm ARC Currently, the most popular selling long-range cartridge in America is Hornady’s 6.5 Creedmoor. ), and 6mm-204.is the 6mm ARC, which Hornady just introduced. I shoot more reloads than factory ammo, but it is nice to have the option of buying off the shelf. You would still be able to fire the ARC from the 6mm AR setup. 6mm GPCC 108 8.5 2830 1600 -176.2 49.4 1920 614 450 6.5mm GPCC 130 10.5 2600 1450 -213 55.3 1951 607 501 M80 Ball 147gr 15.8 2800 1277 -215.2 72.8 2559 532 415 Our 6mm bullet easily beats both the 308 and 5.56 in Every Single Category except muzzle energy, where it only loses to the 308. The 6mm ARC utilizes the same bolt head size as the 6.5mm Grendel, and 6.5mm Grendel AR-magazines have also been used successfully with the 6mm ARC.

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