, Good news for reloaders from Peterson Cartridge Company; their, I'll update with full Chrono readings but 48deg. If youre converting a standard 5.5645 mm (.223 Rem) AR15 upper to shoot 6mm ARC, youll need a 6mm barrel, a Type II 6.5 Grendel bolt carrier group, and new magazines. I would recommend getting a Body Die to help correctly set the new shoulder, as the 6mm ARCs is slightly further back. Only one way to find out! It can reach maximum results with what is already out there, and these components have been thoroughly tested in other cartridges. Then, there will be some neck trimming which needs to be done. Here's what I have for now. Rifle cartridges (l. to r.) .308 Win, 6mm ARC, 300 AAC, .223 Rem, Hornady 6mm ARC Cartridge - What You Need to Know, Public Introduction - 6.5 Creedmoor - 6mm-ARC-Public-Introduction-Rev-2020-06-18.pdf, Brand new rifle caliber: 6 mm ARC, Hornady's Advanced Rifle Cartridge! The first set of data is loaded to the SAAMI maximum average pressure (MAP) of 52,000 psi, which is stated to be suitable for gas-operated firearms such as the AR-15 platform and its derivatives. As of press time, Hornady remained the primary source for properly headstamped brass. They do have a thinner cup, at .020, so if you have a heavy striking free float firing pin, you may want to consider something like the CCI #41s. Yes. View Reloading Essentials View Cartridge Cases, "It's the best all-around cartridge for the AR to date; better than the .223 Rem., 6.5 mm Grendel, 6.8 SPC and .300 Blackout, and evidently Hornady and I aren't the only ones who think so." (function() { I was holding on the left side of the marker dot at 100 yards. Springfield Armory Hellcat Pro CCW Pistol Review. 2854 0 obj <>stream Most reloaders are able to use these interchangeably with the magnum small rifle primers without adjusting their load data, but you do your own testing if you choose to use the #41 small rifle primers in your 6mm ARC loads. Buuut it is so stinking dirty suppressed. The 6mm ARC does what much larger cartridges can and everything that smaller cartridges cant. Request a price. The size of the firing isn't the issue. Primer Size and Bullet Diameter Chart - 3 4050 S. Clark, Mexico, MO 65265 www.grafs.com 800-531-2666 460 S&W Magnum .452 LRM 460 Weatherby Magnum .458 LRM . Also, there could be neck tension issues if those lighter bullets are seated too far out. Cartridge Cases - Hornady Manufacturing, Inc [9] The 6mm ARC utilizes the same bolt head size as the 6.5mm Grendel, and 6.5mm Grendel-compatible AR-pattern box magazines have also been used successfully with the 6mm ARC. 100 GRAIN BULLETS SECTIONAL DENSITY: DIAMETER: 0.243" 100 gr. Well shit, you guys and yesterdays target helped convince me: Yeah, his hazmat charges fluctuate, but $230 for 8lbs is about that much cheaper than the next best I could find, so it works out I figured. I ran test loads using Hodgdon LVR, Alliant Power Pro 2000-MR and Accurate A-2520. document.write(new Date().getFullYear()) Copyright Hornady, Privacy Policy | CCPA Request | Accessibility Policy | Terms of Use, Designed and developed by IdeaBank Marketing. 6mm GT Rifle Brass | Midsouth Shooters All worked well from the bolt action as well, with Power Pro Varmint, Reloder 15 and IMR-8280 XBR also exceptional performers. Masterpiece Arms (MPA) Matrix Chassis bolt rifle allows custom fitting to any shooter via six grip options, three thumb shelves, five trigger supports, a Matrix buttstock with rear bag butthook, a thumbwheel-adjustable length of pull and comb height and adjustable recoil-plate cant. Check out the new for 2022 Walther Pro SD with James Tarr and Jens Krogh. James Tarr gets to talk to Steve Wilson of Rock River Arms about their RBG. Im ordering components and needed to know what to look for. When using shorter barrels, which are common on gas-guns, the difference will be even more pronounced. Give a Gift Reloading Decapping Pins - Small & Large | Midsouth Shooters Here Are 5 Reasons To Consider One! Out of stock. Brownells uppers, barrels, bolts, and magazines, 6mm ARC: 6.5 Creedmoor of the Gas Gun World, 6mm ARC Cartridge SAAMI Specs, Components, Videos, 6mm ARC Cartridge Featured on Shooting USA Tomorrow, 6.5 Grendel is Approved as SAMMI Cartridge Alexander Arms Gives Up 6.5 Grendel Trademark, Sunday GunDay: Beyond .223 Rem Alternative AR Cartridges, Product Review: Hornady 6.5 Grendel Brass. The Answer: 6mm Advanced Rifle Cartridge. PDF Primer Size Chart - Henry Krank With this rifle, Hodgdons CFE 223 was the hands down accuracy winner with 28 grains producing a .28-inch group at 2,800 fps, and 29 grains a .52-inch group at 2,835 fps. Smallest group being about .25 inch. Hornady is one example of one that has their load data calculated with small rifle magnum primers, namely the Remington 7 1/2 primers. They have 10 solid options ranging in weight from 90 to 110 grains. Your main problem with small pistol primers is the cup thickness and the free float firing pin in an AR style rifle. As 6mm (.243-inch) has been a fairly popular all-purpose caliber for decades, there are a lot of good choices. Remember though, its not as simple as running a case into a 6mm ARC sizing die. Shooter's Reference Shellholder Chart The accuracy of the ARC is superb." Mar 19, 2023 . Deviating from Soviet design, the ARC takes on a 30-degree shoulder angle; this is common with . 6mm ARC: Cartridge Design The cartridge was quickly accepted as a Sporting Arms and Ammunition Manufacturers Institute (SAAMI) standard, an excellent start to such a new cartridge. Any idea how far they're jumping? Heres what I have for now. 6mm ARC - "Optimum 6mm" & Powders & Lapua Brass David Fortier is with CEO of Silencer Central Brandon Maddox at Roundtable 2022. 6mm ARC Rifles | Wilson Combat Brandon explains how his company has streamlined the suppressor buying process. Spanking-new Hornady bolt gun data included bullet weights from 58 (V-MAX) to 108 (ELD Match) grains, though I saw no reason to shoot varmint bullets through a 1:7 twist tube. Do You Need a 9mm? IMR-8280 XBR produced this series smallest group and deserves more thorough investigation. 6mm PPC - Wikipedia I averaged 2889fps with 95g VLD and yesterday 2905fps at 69deg. 6A5479F2-F4EE-4208-8690-9740176B4BC7.jpeg, Peterson news 6mm ARC brass manufacturing_2023.JPG. You'll need a new barrel, bolt, and mags. The 6mm ARC Cartridge: Why the Military Needed It Yet, the 6mm ARC was designed to play in the deeper end of the bullet pool. . My 95s just came in and at 2.25oal I'm at 100 thousandths jump. My load above (#5 and7) is gas gun. RCBS - 32 . Youll need a new barrel, bolt, and mags. We hope you think about being prepared more than twice per month, but our newsletter is a valuable resource to help you learn new things, and just to keep prepping on your mind. It seems as though the common choices are: 18" barrel with rifle length gas. As the industry continues to find more variations for AR-15 platforms, one has to wonder how much life this cartridge will have, as so many have landed in niche followings? Remember though, Berger bullets will be the longest you will use, so verify your barrel twist. Less felt recoil than larger short-action-based (308 Win family) cartridges. Official SAAMI Cartridge (not wildcat) Theyre a match grade primer, so theyre a more expensive option, especially if youre just planning on using them for plinking, but they work. SP = Small Pistol . I just loaded them to 2.25 COAL to be mag friendly. Lever that dirty? Thirty grains of Shooters World Precision Rifle produced the best group with that powder (.57 inch at 2,887 fps), though the bolt opened just a touch tightly for my taste. Sign up to receive new product announcements, special offers, and the annual product catalog. 6mm ARC 86287 50 6mm Remington 8622 50 6mm Creedmoor 86280 50 6mm Creedmoor 86280B 2000 25-35 Winchester 86101 50 250 Savage 86105 50 25-06 Remington . They will expand on small varmints at 6mm Creedmoor velocities, so they should work well on average-sized hogs or smaller deer. Handloading data for the 6mm ARC was newly minted at the onset of this months-long project. 6mm GT: Is This the Newest Precision Ammo Niche? - Guns.com I hope its stable in my gun. It is NOT for use in AR-15 style (gas gun) rifles. Alliant's Reloader 15 would be another good option to consider. For a variety of reasons, is wise to keep pressures in a semi-auto rifle moderate. PRIMER LEGEND . Maximum pressures in the turn bolt were established at 62,000 psi. Essentially, this could mean that you pull the trigger once and it could empty the whole magazine. For general information, see 6mm ARC Info Page. To obtain maximum accuracy, bullet weight and form are matched to the rifling twist rate of the barrel. The 6mm ARC as a possible military round doesnt interest me so much as the promise of a serious hunting round. In fact, some prefer them for precision loads. Federal's New 30 Super Carry, What You Need To Know! Brought out by Hornady just a few months ago, this moderate-sized round is based on the 6.5 Grendel and shares similar rim and body dimensions. Im using RCBS SB/TC dies and just lubing and running. As for the selection, the burn rate chart has a listing of 22 powder options, but not all are good for semi-automatic rifles. Some folks have suggested standard AR mags will work, but trust us, you want the magazines that have been designed for 6.5 Grendel. The 6mm ARC cartridge takes a small rifle primer. 6mm ARC: How it started, 6mm ARC: What is it The 6mm ARC achieves substantially better ballistics than the 223/5.56. The #41s have a harder cup and are very popular for reloaders who shoot primarily out of an AR15 platform. Yes. Not a big issue except carbon/powder fouling starts causing fliers faster than anything I've had before. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. The 6mm Advanced Rifle Cartridge (ARC) was tested, selected and elded by a specialized group within the U.S. DoD for its multipurpose combat rie program. AR-15's) and kept to a maximum pressure of 52,000 psi. Commercial 6mm ARC loads feature bullets selected to deliver ideal performance for hunting, match shooting, and personal protection applications. The two rifles used to test the new 6mm ARC cartridge included a CMMG Endeavor AR-15 (left) and a Masterpiece Arms Matrix Chassis bolt-action rifle. Shown for comparison (left to right): the parent case 6.5 Grendel, Hornadys 6mm ARC and the venerable .223 Remington. At least thats the theory. 6mm ARC: Match Ill throw my initial pressure testing data into the ring. 30-degree case shoulder. I really hope this takes off. ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. We recommend the WSR primer, or small rifle primers. As the story goes, Hornady developed the 6mm ARC under direction from the U.S. Department of Defense, optimizing the Grendel case to meet prescribed goals. You must log in or register to reply here. Founded by Frank Galli in 2000, Snipers Hide has been offering informational videos, podcasts, and other support to its users in one location. Moving load to a Speer 100 Grain Spire-point. Patrick Sweeney shows us his PCC Competition SIG Sauer MPX. : 0.405 Now, take the 6.5 Grendel case, neck it to 6mm, give firearms fast rifling to handle long-for-caliber bullets weighing from 103 to 115 grains, including ballistic coefficients (BC) equaling those 6.5 projectiles, and you have Hornadys spanking-new 6mm Advanced Rifle Cartridge, or ARC. 6mm ARC brass forming -& primer flash hole diameter discussion? 3 shots touching and a couple wild ones. Dr. Dabbs tells us all about the weapons used in the his personal favorite war movie, Kelly's Heroes. Brownells also sells Hornady-made 6mm ARC factory-loaded ammo, but most varieties are out-of-stock right now, as is the 6mm ARC brass. A 31-grain maximum charge of LVR produced a .35-inch group at 2,925 fps. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); At least, that is what one would initially think. Subscriber Services. As always, do your own testing to confirm using safe load development practices. David M. Fortier, Firearms News Read More, "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." The 6mm ARC cartridge is a new SAAMI-spec cartridge based on the 6.5 Grendel case necked down for 6mm bullets, with the shoulder moved back 0.030. For an ordinary AR-15 rifle chambered for the .223 Rem/5.56mm NATO, a new barrel, magazine and bolt are required to convert to the 6mm ARC. In fact, when my wife said- I want a gun to deer hunt with that doesnt kick, I built her a 6mm ARC, and it did the job. Yeah, I saw that post. Plus you will have some turning to do to remove all the extra brass before you can load the new cases. 6mm ARC - Practical Reloading | Page 4 | Shooters' Forum Jay Langston, Ballistic Magazine Read More, "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." Wolfe Publishing Company | 2180 Gulfstream Suite A | Prescott, AZ 86301. They have 10 solid options ranging in weight from 90 to 110 grains. AR test loads included Bergers 108-grain Elite Hunter with a .559 G1 BC, 110-grain Hornady A-Tip (.604 G1 BC) and Noslers 115-grain RDF with a .634 G1 BC (the highest BC 6mm bullet Im aware of). Everything else bolt, magazines, gas system is compatible with 6mm ARC. Today's testing using an 6mm ARC upper I built up with a 16" barrel (4 groove cut rifled barrel 1:7.5" twist) with a SAAMI 6mm ARC chamber: 26 gr of H4895, CCI BR4 primer, Berger 105 gr BT, Lapua reformed and trimmed 6.5 Grendel brass, 2.265" OAL magazine fed = 2453 fps - .505" 5 shot group - accuracy excellent. Aero Precision already offers complete 6mm ARC uppers. 6mm Lee Navy .243 BLR 6mm PPC .243 SR 6mm Remington .243 LR 6mm TCU .243 SR 6mm-06 Springfield .243 LR 6mm-284 Winchester .243 LR It is a popular primer in AR type rifles. Lapua .243 / 6mm 105 Grain Hollow Point Boat Tail Scenar L (1000 Bullets) $ 471.51. Lapua Brass, Ammunition and Bullets | Powder Valley In June 2020, Hornady introduced the 6mm ARC, a new SAAMI cartridge optimized for AR-platform rifles*. Very interesting. Top velocities with 108- and 110-grian bullets reached 2,575 fps. Hornady - 6 . 2453 C.O.L. . You are using an out of date browser. Now I either use #41 primers, or, more frequently, I just load all my .6mm ARC and 6mm ARC brass to .6mm ARC load levels. The Headrest Safe is the ultimate in discreet storage for your valuables (gun, money, credit cards, jewelry, medicines). I also wouldnt hesitate to use this bullet on varmints and predators, even hogs while aiming into the shoulder to assure bullet fragmentation. I suggest considering CCI BR-4s. All barrels will be . | endstream endobj startxref Conceivably, this means. Shown for comparison are some popular 6mm cartridges, including the (1) 6mm ARC, (2) .243 Winchester, (3) 6mm Remington and the (4) .240 Weatherby Magnum. (6) Auto 4X4 and Five-Station Shell Plates not available. Yet, if forced to choose but two powders, Alliants Power Pro 2000-MR (AR and bolt) and Power Pro Varmint (bolt) proved exceptionally versatile and decidedly less finicky. The 6mm Advanced Rifle Cartridge (638mm), or 6mm ARC for short, is a 6 mm (.243) caliber intermediate rifle cartridge introduced by Hornady in 2020, as a low-recoil, high-accuracy long-range cartridge, designed for use in the AR-15 platform at request of a specialized group within the U.S. DoD for its multipurpose combat rifle program. My reformed cases were 1.512 and I modified a lee 6mm PPC case gauge and trimmer to trim to 1.480. If you usually use a regular small rifle primer, we recommend not going straight to a max load after you make the switch. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. 6mm ARC brass forming -& primer flash hole diameter discussion? brass })(); To comment on a post, click Post Title or "Comment" Link. The AR-15 test rifle was a CMMG Endeavor 300 MK4 with a 20-inch barrel and 1:7.5 twist. Gain a deep knowledge of ballistic science and access our improved ballistic calculator. Lock it away from potential thieves. Add to Compare. Our 6mm ARC reloading brass is sorted by size, . I like the cartridge but the dam name sucks. Yes it is designed to run in AR15-platform rifles. JavaScript is disabled. Preview: Hornady 6mm ARC | An Official Journal Of The NRA Patrick Sweeney gives some history on this interesting pistol. Shooter can self-spot impacts on or off target to make rapid adjustments. The 6mm ARC offers a 30 to 35% lighter-weight package (gun and ammo). Now, on to what goes beneath the projectile. The 6mm ARC gives hunters the ability to successfully hunt varmints and deer. LP = Large Pistol . 6mm ARC Unprimed Cases (50 ct) Item No 86287, 6mm ARC Series III Two-Die Rifle Die Set (.243) Item No 546251, 6mm ARC Full Length Die (.243) Item No 046262, 6mm ARC Seating Die (.243) Item No 044244, Small Rifle Case Feeder Plate Item No 095314, Bullet Puller Collet #3 (.243) Item No 392156. 6mm ARC - Rifles by Caliber - Rifles - Firearms - Departments The Endeavor proved slow to warm with the ARC cartridge, and recoil was quite gentle. Except for Reloder 15, Precision Rifle and Varget, all are fine-grained or spherical powders that flow like water. The rifle fed smoothly with all loads tested. The 6mm ARC shoots far and fast for its size, and can stay supersonic at or beyond 1,200 yards. Already adopted by one Army Spec. It is not limited to use in an AR-15 either, and would work well in a micro-action bolt gun." You may not reproduce original text or photos without advanced permission in writing. 6mm ARC: Military Application Hornady - 5 . Another example would be a 16" 5.56 with a midlength gas as being sort . Velocities were established from a 24-inch barrel. Overall, the 6mm ARC delivers optimum all-range performance and barrel life. hbbd```b``:"gI~ 2.l#0qd f$3|{ 4 (Photo credit: Hornady) Hornady has the following to say about the cartridge: Please note that this article looks at research and testing done by a variety of sources. If you already have an AR chambered in 6.5 Grendel, the ONLY thing you need to change is the barrel. https://apocalypticprepping.com/making-300-aac-blackout-brass-from-6mm ARC-5-56/. Balanced application of cartridge, chamber and propellant design coupled with bullet selection for optimum all-range performance and barrel life. Designed to meet the needs of the worlds toughest critics, the 6mm ARC utilizes efficient, high-BC bullets to deliver unprecedented performance from the AR-15 platform. Wilson Combat will offer WC-15 6mm ARC rifles with our match-grade, 18" fluted/threaded Tactical Hunter barrel. The handloads chambered especially tight in this rifles match chamber; the bolt turned down with some small effort, but otherwise it shot well. More brass and ammo should arrive soon. hb```,? I counted thirteen options in their BT Target, Classic Hunter, VLD, VLD Hunting, VLD Target, Hybrid Target and Long Range Hybrid Target lines. Like Greg talks about in the 1st of his video. Weve also gotten reports that yes, you can also use small pistol magnum primers to develop your loads. I don't with my 6.5 Grendel and never an issue. Check out our current selection of 6mm GT Rifle Brass below! It could easily be argued the ARC is yet another version of the 6mm PPC (which was never SAMMI standardized) actually a pretty fair assessment, though the fast rifling twist changes everything. 6mm ARC The 6mm Advanced Rifle Cartridge (638mm), or 6mm ARC for short, is a 6 mm (.243) caliber intermediate rifle cartridge introduced by Hornady in 2020, as a low- recoil, high- accuracy long-range cartridge, designed for use in the AR-15 platform at request of a specialized group within the U.S. DoD for its multipurpose combat rifle program. CONTACT US All Rights Reserved Wilson Combat. The 6 GT Is a New Top Cartridge in the Precision Rifle World - Outdoor Life Right now you can also sign up for free. Some have stated that it offers comparable ballistics to larger 6 mm cartridges like the 6mm Creedmoor and .243 Winchester, but out of a smaller cartridge, however this simply is not true when comparing muzzle velocities between them. Check out our selection below and make Midsouth Shooters your reloading headquarters! _gaq.push(['_setDomainName', '.accurateshooter.com']); With the release in 2020, Hornady also launched three factory loads with 103,105 and 108gr (6.7,6.8 and 7.0g) bullet weights and advertised G1 ballistic coefficients of .512, .530 and .536 respectively.[6]. found this link recently, there is mention of SW precision for bolt gun near end of article, apparently the author looked at 6 mm BR data and worked up load from there, maybe using QL too? If you are interested in reloading the 6mm ARC, the obvious place to start is with suitable cartridge cases. Anyone have any velocity data with a 14.5"? : 2.180"G1 B.C. The Hornady manual states that this second set of data should not be used in gas-guns. The 6mm ARC also betters or equals AR-10-based .308 Winchester ballistics regarding drop and wind drift (if not delivered energy). 22411 C.O.L. I have done quite a bit of looking and have only found a graph of what factory Hornady match ammo ran at different lengths. Bolt-action data was developed in a CZ-USA Model 527 with a 24-inch barrel and 1:7.5 rifling. Every gun is different, so see how your gun will react before you just full send it with 6mm ARC reloads with small pistol primers. Twenty-eight grains of Hodgdon CFE 223 beneath a 105-grain Lapua Scenar-L resulted in this .38-inch group. The loads I posted above were in a AR. Some reloading manuals, like the Lee and Nosler handbooks, list regular small rifle primers in their load data, while others recommend either small rifle magnums, or the #41, which is a harder magnum small rifle primer with a thicker cup. The brass that I got appears to have a slight crimp ring around the primer pocket. These would have the best results if set off with match grade small rifle primers. Sierras 95-grain Tipped MatchKing is a favorite 6mm varmint bullet, with a great BC for weight and improved velocities compared to heavier 6mm bullets with similar profiles. Some recommend an AR specific primer, with a thicker cup, but we havent ever had any issue with using regular small rifle primers in a 6mm ARC. Accuracy only improved with IMR-8280 XBR, with 25.5 grains producing a .26-inch group at 2,609 fps, which was quickly overshadowed by a true one-hole .13-inch (center to center) group at 2,678 fps the rifles best group. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; Some Berger bullets require a very fast one turn in 7 inches twist rate. The CMMG Endeavor AR-15 proved capable of fine precision, including this .59-inch group with a combination of Bergers 108-grain Elite Hunter and 29.5 grains of Power Pro 2000-MR. 2023 Outdoor Sportsman Group. If you have light firing pin strikes, you may have problems with these, as they have a harder cup, but the 6mm ARC was originally designed to shoot this harder nato style primer. (Speer 75 grain HP on top of 25 grains of IMR 4895. The case head remains .441 inch and the rim is .059-inch thick. ga.src = ('https:' == document.location.protocol ? 3dR=j|J{~$'Hk yR_;q Bullets of the . Thanks for the info. This versatile cartridge does much of what larger cartridges can and everything that smaller cartridges can't. The 6mm ARC is an AR-15 platform cartridge that performs well whether it's a close-quarters situation or if there's a need for a longer-range shot to be taken. When developing a new load for your 6mm ARC, or any caliber, you should start with smaller amounts of powder and pressure and work up gradually. Overall, it proved the most accurate bullet of the bolt-rifle test, the 1:7 rifling twist really helping it excel. This was way over pressure yielding speeds in the 2730 FPS range, heavy ejector swipes and unusably expanded primer pockets. David Fortier gets a look at Roundtable with Nathan Robinson. 20" barrel with rifle +1. About the Sierra 6mm 107 grain HPBT MatchKing. The action is an MPA/Curtis with a 60-degree bolt throw and fluted, Nitrided bolt body. 6mm ARC vs 308 WIN The free float firing pin makes contact with the next rounds primer when the new round is chambered. The 6mm ARC is a cartridge designed to be a much faster and harder hitting round than the 5.56, but still capable of being shot from the AR-15 platform. I have a question for those who have reloaded for this cartridge. QD mount. My Lever loads have produced some of the best groups and by far the best ES and SDs I've ever had. :u0RFH1r)F#a9nZh. Because of this, we recommend that you subscribe to our bimonthly newsletter to keep prepping, emergency preparedness, and self reliance on your mind. Bullets used to test the CMMG AR-15 included (left to right) the 108-grain Berger Elite Hunter, 110-Hornady A-Tip Match and the 115-grain Nosler RDF. The 109-grain Berger Long Range Hybrid Target would be the ticket for shooters addressing distant targets. The first two resulted in at least one combination producing groups from .75 to 1 MOA, but 27 grains of A-2520 (about 100 fps off maximum) put the first three shots into .36 inch, No. It may not display this or other websites correctly. Cartridge Cases - Hornady Manufacturing, Inc Made brass from 6.5 Grendel Cartridges. A popular chamber neck diameter for the 6mm PPC is 0.262 inch, although some are a bit smaller or larger. Powders mirrored those used for AR loads, with the addition of Ramshot TAC, Alliant Power Pro Varmint, Hodgdon Varget, Shooters World Precision Rifle (extrapolated from 6mm Remington BR data) and IMR-8202 XBR. Hornady launched the 6mm ARC with three factory loads: a 103-grain ELD-X Precision Hunter at an advertised 2,800 fps, 105-grain BTHP Hornady Black at an advertised 2,750 fps and the 108-grain ELD-Match load at a stated 2,750 fps. Of course, a handful of handload combinations provided exceptional results, which from an AR, I considered anything printing less than an inch with five shots at 100 yards. Its been consistently about $2 per round for a 6mm rifle while I can get 5.56 rounds for about 70 cents a round or less. Prepping is an ongoing venture. So, I suggest staying loading bullets 90 grains and heavier. Hornady is an obvious first choice for selecting 6mm projectiles to load the 6mm ARC with. 31.2g LVL. The 6mm ARC is a serious cartridge, particularly from an AR-15, and one I hope fares well in the fickle world of cartridge popularity. Share the post "6mm ARC Cartridge SAAMI Specs, Build Requirements, Videos", Tags: 6.5 Grendel, 6mm ARC, 6mm Creedmoor, 6mmAR, Brownells 6mm ARC, Hornady. I ran the Hornady 108gr ELD through the Berger bullet stability calculator after looking at targets fired by various people with 7.5 and 7.7 twist barrels. Excellent terminal performance from an assortment of bullets for a variety of applications. According to the calculator a 1:7 twist barrel is necessary to adequately stabilize that bullet. The barrel measured .935 inch just behind the hybrid MPA muzzle brake. The only powders that is available commercially that will get 105-108gr bullets to 2750fps under 52ksi pressure are temperature sensitive ball powders. I will be using once fired Hornady brass to get going. Groups were all in the 1 to 1.5 MOA range at 100 yards. 6mm ARC SR 6mm BR (Bench Rest) SR 6mm Lee Navy BLR 6mm PPC SR 6mm Remington LR 6mm TCU SR 6mm-06 Springfield LR 6mm-284 Winchester LR 6/6.5mm Creedmo or SR / LR 6x62mm Freres LR . This bullet requires a twist rate of 1:8" or faster. If cases were formed from cases having boxer-type primers, use the appropriate Shell Holder for that caliber. 6mm ARC vs the Creedmoors 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.
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