6mm arc primer size

I don't with my 6.5 Grendel and never an issue. [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. Hornady also supplied dies, brass and initial factory ammunition for this project. 0 (4) not available. I really hope this takes off. Cratering usually happens at 1st. 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. Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. For a better experience, please enable JavaScript in your browser before proceeding. Because I just got back from the range and saw something I've never seen before. 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 Whitleys outstanding 6mm AR wildcat. A new addition to the Honey Badger line is a 115 grain 10 mm round. 7 mm Remington SAUM (Short Action Ultra Magnum) Lee - 5 . The usual cartridge neck diameter with a .243-inch bullet seated is 0.260 inch for a .262-inch chamber throat. 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. They currently have 4 choices, 3 commercial offerings and one for LE use. Prepping is an ongoing venture. I was getting sub MOA groups consistently at 100 yards. Tom Beckstrand, Guns & Ammo Read More, "If youd like to keep the same rifle platform while gaining an increase in energy and long-range performance without much more recoil, then the 6mm ARC is for you." The Winchester 350 Legend is built with hunters and sport shooters in mind, 350 Legend is versatile on the range and in the deer woods. This means you have the option to read your magazine on most popular phones and tablets. All handloads tested averaged 1.30 inches, Hornady Black 105 BTHP factory ammunition 2.35 inches and Hornady Match 108 ELD Match 1.05 inches. 58 GRAIN BULLETS SECTIONAL DENSITY: DIAMETER: 0.243" 58 gr. 6mm ARC brass forming -& primer flash hole diameter discussion? Review: Hornady 6mm ARC | An Official Journal Of The NRA With Bergers 108-grain Elite Hunter, 28 grains of Hodgdon CFE 223 produced a .91-inch group at 2,463 fps; 27.5 grains of Hodgdon LVR a .72-inch group at 2,463 fps; 28 grains of Accurate 2520 a .96-inch group at 2,550 fps and 27.5 grains of Alliant Power Pro 2000-MR a .59-inch group (the best with this bullet) at 2,347 fps. Anyone loading for a gas gun in ARC? Utilizes an efficient propellant charge and bullet weight combination. Also another where the guy says he hasnt seen big temp swings. t!.>%DBvv InterLock BTSP Item No. My Components; . Hornadys initial gas gun data included only 108-grain ELD Match and 110-grain A-Tip Match bullets; lighter bullets from 58 to 105 grains were added within a couple months. This 6mm ARC reloading data is intended for use in gas guns (e.g. JavaScript is disabled. Less felt recoil than larger short-action-based (308 Win family) cartridges. Cartridge Cases - Hornady Manufacturing, Inc Lapua bullets are well respected for their quality, and should make a good match for the 6mm ARC. 6mm Creedmoor Large Rifle vs Small Rifle Primers?? - Sniper's Hide Forum The 109-grain Berger Long Range Hybrid Target would be the ticket for shooters addressing distant targets. Both our 6GT and 6mm ARC have 1:7.5" twist barrels. From the CMMG Endeavor AR, Hornadys A-Tip Match over 25.5 grains of Hodgdon LEVEREVOLUTION produced the best group; .39 inch at 2,263 fps. 30-degree case shoulder. The 6 GT Is a New Top Cartridge in the Precision Rifle World - Outdoor Life ga.src = ('https:' == document.location.protocol ? Yes, some reloading data are made with small rifle magnum primers. My Lever loads have produced some of the best groups and by far the best ES and SDs I've ever had. Shown for comparison (left to right): the parent case 6.5 Grendel, Hornadys 6mm ARC and the venerable .223 Remington. The new round offers shooters some of the best attributes possible for precision shooting. The handloads chambered especially tight in this rifles match chamber; the bolt turned down with some small effort, but otherwise it shot well. They will expand on small varmints at 6mm Creedmoor velocities, so they should work well on average-sized hogs or smaller deer. They have 10 solid options ranging in weight from 90 to 110 grains. Right now you can also sign up for free. Since no case is complete without its proper toppings, we move to bullet selection. Im using RCBS SB/TC dies and just lubing and running. Commercial 6mm ARC loads feature bullets selected to deliver ideal performance for hunting, match shooting, and personal protection applications. It can reach maximum results with what is already out there, and these components have been thoroughly tested in other cartridges. (5) Auto 4X4 Shell Plate not available. Bolt-action data was developed in a CZ-USA Model 527 with a 24-inch barrel and 1:7.5 rifling. In fact, some prefer them for precision loads. If you are interested in reloading the 6mm ARC, the obvious place to start is with suitable cartridge cases. (Photo credit: Hornady) Hornady has the following to say about the cartridge: 6mm ARC: Bolt Gun Application 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. All the hardware you need is currently available at Brownells. As of press time, Hornady remained the primary source for properly headstamped brass. 6mm ARC: Match Heres what I have for now. The Endeavor proved slow to warm with the ARC cartridge, and recoil was quite gentle. Tested, selected and fielded by a specialized group within the U.S. DoD for its multipurpose combat rifle program, the versatile 6mm ARC does much of what larger cartridges can and everything that smaller cartridges cant. Lever that dirty? You can also follow our Facebook Page for regular articles and resources. It is not limited to use in an AR-15 either, and would work well in a micro-action bolt gun." Lapuas 105-grain Scenar-L has proven exceptionally accurate in several other 6mm cartridge tests. Shooter's Reference Shellholder Chart How are you forming your brass from the Starline? 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. Alliant's Reloader 15 would be another good option to consider. Lock it away from potential thieves. Headrest Safe a new way to secure your firearm. Already adopted by one Army Spec. Those 95s moving fast keep up with 108g ELD with drift and a good bit less drop if you assume a decent starting velocity. )It had moderate recoil and primers were did not show pressure. Alpha Munitions | Premium Brass for Precision Shooting Depriming and priming must be done by hand. The 6mm ARC is a medium-power cartridge comparable to the 6.5mm Grendel, but with better ballistics thanks to the greater muzzle velocity achieved by using lighter 6 mm bullets and enough power to make use of the heavy 6 mm bullets. Hornady - 5 . As always, do your own testing to confirm using safe load development practices. Language links are at the top of the page across from the title. Well, regardless of how commercially accepted this new entry becomes, if one were to acquire a rifle or build one of their own, reloading your own 6mm ARC ammo will guarantee it remains in your collection. 6mm ARC The newest 6mm factory round is the recently announced 6mm ARC (Advanced Rifle Cartridge). The 6mm ARC offers a 30 to 35% lighter-weight package (gun and ammo). Hey guys, is there something special about Hodgdon LVR in 6ARC? I was holding on the left side of the marker dot at 100 yards. It may not display this or other websites correctly. It is NOT for use in AR-15 style (gas gun) rifles. That's one great thing about the Hornady 6mm ARC, its not trying to remake the wheel. Sierras 95-grain Tipped MatchKing seated over 32 grains of Power Pro 2000-MR produced this .33-inch group from the MPA bolt rifle. If you already have an AR chambered in 6.5 Grendel, the ONLY thing you need to change is the barrel. Started with Hornady brass, 42 grains of H-4350, Hornady 105 grain Match BTHP, and Large Federal gold medal match primers. Very interesting. Federal's New 30 Super Carry, What You Need To Know! Contemplating a trip to Texas with Trijicon representatives, and wanting to conduct in-field testing with the AR on deer and hogs, I turned to Hornadys 103-grain ELD-X. Handloading data for the 6mm ARC was newly minted at the onset of this months-long project. 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. hbbd```b``:"gI~ 2.l#0qd f$3|{ 4 The cartridge was quickly accepted as a Sporting Arms and Ammunition Manufacturers Institute (SAAMI) standard, an excellent start to such a new cartridge. The other rounds were in the pic were from a clean barrel and also the wind was gusting hard. These range from 90 to 115 grains and will fill any list of needs. These sets will not only have the required full-length sizing die to maintain proper case length, but will also completely size the body. Wilson Combat will offer WC-15 6mm ARC rifles with our match-grade, 18" fluted/threaded Tactical Hunter barrel. Figured Id start a thread for the 6mm ARC. Equally at home in AR-15 platforms and short or micro action bolt guns and suitable for applications from personal defense to match shooting and hunting. I averaged 2889fps with 95g VLD and yesterday 2905fps at 69deg. Another example would be a 16" 5.56 with a midlength gas as being sort . 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. I ran test loads using Hodgdon LVR, Alliant Power Pro 2000-MR and Accurate A-2520. 6mm ARC brass forming -& primer flash hole diameter discussion? brass 6mm ARC: Handloading Shot this group with hornady black 105s today in 5 degrees and howling wind. Bullets of the . 100 GRAIN BULLETS SECTIONAL DENSITY: DIAMETER: 0.243" 100 gr. All Rights Reserved. The Hornady manual states that this second set of data should not be used in gas-guns. I buy from Sportsmans warehouse and several local shops by where I live. LPM = Large Pistol Mag . Plus you will have some turning to do to remove all the extra brass before you can load the new cases. Some Berger bullets require a very fast one turn in 7 inches twist rate. Springfield Armory Hellcat Pro CCW Pistol Review. Accuracy may also suffer. Precision Reloading Guide Part 2: Case Preparation The case head remains .441 inch and the rim is .059-inch thick. 2847 0 obj <>/Filter/FlateDecode/ID[<17398BDBD67F214CBB3755FAA4BE7340><20967B39C4AB1349BB25AF309099C3A9>]/Index[2829 26]/Info 2828 0 R/Length 94/Prev 197341/Root 2830 0 R/Size 2855/Type/XRef/W[1 3 1]>>stream 6mm Advanced Rifle Cartridge (6mm ARC) - The Firearm Blog 12 Great 6mm Cartridges - Shooting Times Weve also gotten reports that yes, you can also use small pistol magnum primers to develop your loads. 18" barrel with rifle +1. According to the calculator a 1:7 twist barrel is necessary to adequately stabilize that bullet. Small rifle magnum primers, like the CCI 450, will certainly work in the 6mm ARC cartridge. 6mm ARC - "Optimum 6mm" & Powders & Lapua Brass No idea honestly. Some may want to try and reform 6.5mm Grendel cases into 6mm ARC. PRIMER LEGEND . Youll need a new barrel, bolt, and mags. The 6mm ARC shoots far and fast for its size, and can stay supersonic at or beyond 1,200 yards. Power Pro Varmint excelled once more, with 26.5 grains resulting in a .37-inch group, 27.5 grains a .54-inch group and 28.5 grains a .46-inch group at 2,678, 2,786 and 2,817 fps, respectively. Overall, the 6mm ARC delivers optimum all-range performance and barrel life. Accurate A-2520 produced a .43-inch group at 2,886 fps, while Power Pro 2000-MR shined again. Where the Dasher/BR crowd has a case head size of . 20" barrel with rifle +1. Power Pro 2000-MR, which also performed well in the AR, proved exceptional with this bullet: 30, 31 and 32 grains producing .44-, .53- and .33-inch groups at 2,754, 2,786 and 2,940 fps, respectively. Oldest M2 Browning .50-Caliber MG Still in Service? What kind of dies are you using? })(); To comment on a post, click Post Title or "Comment" Link. 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? Factory ammunition in a variety of bullet styles. 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. 6 mm ARC (Advanced Rifle Cartridge) Lee - 12 Lee - 12 . Primer Pocket Swage Tool; Priming Tools; Shell Plates, Shell Holders & Bushings; Shotshell Accessories; Dies & Accessories . Thanks for the info. PDF Primer Size and Bullet Diameter Chart - Graf & S Remember though, its not as simple as running a case into a 6mm ARC sizing die. 6mm ARC Everything You Want to Know About It - The Mag Life Do not exceed the maximum charges. Seeing some pressure signs and maybe a little overgassed at near 70degrees, probably a load for freezing temps. Why call a cartridge an Arc defined as part of a circle . James Tarr gets to talk to Steve Wilson of Rock River Arms about their RBG. At least thats the theory. The 6mm ARC delivers comparable performance from a wider assortment of bullets, making it a more versatile choice. 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]. Plus, there are newer additions to Hornadys line like the ELD Match, ELD-X and A-TIP. Yes. 6mm ARC: Cartridge Design It blows the doors off the 5.56 NATO/.223 Remington, providing reduced wind drift and higher retained velocity/energy at any range. Finally, a compressed load of 29.5 grains of Alliant Reloder 15 printed .45 inch at 2,900 fps. Access features of the Reloading Handbook on your mobile device with the Reloading App. It's the size of the FP hole in the bolt face, in relation to the FP itself. They shouldve just left it at A.R.C. Hornady 6mm ARC brass looks to be of good quality, is fairly consistent and should give you a number of reloads as long as dont lose them, or are pushing for maximum velocity. var _gaq = _gaq || []; 6mm GT SRP (Small Rifle Primer) $ 130.00 $ 25 Creedmoor SRP (Small Rifle Primer) Out of Stock 118.00 - 6XC SRP (small rifle primer) Out of Stock $ 115.00 - $ 6XC LRP (Large Rifle Primer) Out of Stock 115.00 575.00 Out of Stock Shop All Brass REAMERS Pilot Bushing $ 19.99 Alpha Legacy Reamer $ - $ Shop All Gear A Word From The Alpha Team Federal Premiums Gold Medal Match Small Rifle primers were used in all bolt loads. 6mm ARC: Hunting Out of stock. Groups were all in the 1 to 1.5 MOA range at 100 yards. The loads I posted above were in a AR. Specifically, the CCI 550 Small Pistol Magnum primers and the CCI 400 Small Rifle Primers are the same size, with the same cup thickness. You can over pressure the case quick so be careful. 26" McGowan 1:7" 0.086" gas port, Odinworks adjustable gas block, JP BCG Using 0.350" insert Hornady comparator's headspace 1.183" Sized 6.5 Grendel Virgin Starline brass headspace 1.187" Fired cases headspace 1.191" 1.720" CBTO Lands contact 100 TGK . The rifle weighed 11 pounds, 7 ounces after the addition of a Burris RT-15 3-15x 50mm FFP 30mm scope held in Burris AR-P.E.P.R. The groups showed signs, at least to me, of not being adequately stabilized which is why I went to the calculator. @(aO 0{!{:8:@T @1fpQ{3W=97,_:Xr"Ck&efS cH Se To obtain maximum accuracy, bullet weight and form are matched to the rifling twist rate of the barrel. Perfect for concealed and everyday carry, the Springfield Armory Hellcat Pro is feature-packed and built for rough use. 6mm ARC - Hornady Manufacturing, Inc Efficient short, fat case design Read more; Lapua .243 / 6mm 90 Grain Hollow Point Boat Tail (100 Bullets) $ 40.17. . Jeff Johnston, American Rifleman Read More, "The 6mm ARC has the potential be a very accurate cartridge. The 103-grain ELD-X from Hornady includes an impressive BC and expansion at velocities as low as 1,800 fps. 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. If you usually use a regular small rifle primer, we recommend not going straight to a max load after you make the switch. [citation needed]. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; Hornady is an obvious first choice for selecting 6mm projectiles to load the 6mm ARC with. BR 4 primer are good to go. 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. The only powders that is available commercially that will get 105-108gr bullets to 2750fps under 52ksi pressure are temperature sensitive ball powders. 4 and 5 wandering .25 inch but printing a single hole. The case volume will easily allow for up to 30 grains of powder, but please wait for qualified load data to be available. Velocity is not always everything, but the 6mm GT provides ample speed for its size. Primer Manufacturer Chart; Shellholder Chart; Bullet Abbreviations; User Loading Data. , Good news for reloaders from Peterson Cartridge Company; their, I'll update with full Chrono readings but 48deg. Separate data will be provided for bolt action firearms. Purchased a 6mm Arc upper from Sanders Armory. 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! (6) Auto 4X4 and Five-Station Shell Plates not available. Introducing the latest products from the worldwide leader in ammunition. Yes it is designed to run in AR15-platform rifles. Moving load to a Speer 100 Grain Spire-point. 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. It delivers less drop, less wind deflection and the ability to shoot accurate groups at much greater distance (1000+ yds). Should be interesting. With the current political situation, its most likely going to take me a long time to get all the parts together. This will provide you with some Hornady brass to get you started reloading. Primer Pocket Swage Tool; Priming Tools; Shell Plates, Shell Holders & Bushings; Shotshell Accessories; Dies & Accessories . RCBS - 38 . var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; We're proud to carry both small quantity specialty brass and affordable bargains like breakdown brass to the large quantity bulk brass by the case. Things started well with 28.5 grains of Accurate A-2520, with a .48-inch group at 2,745 fps. Commercial 6mm ARC loads feature bullets selected to deliver ideal performance for hunting, match shooting, and personal protection applications. The 6mm ARC as a possible military round doesnt interest me so much as the promise of a serious hunting round. 6mm ARC vs the Creedmoors The 6mm ARC also betters or equals AR-10-based .308 Winchester ballistics regarding drop and wind drift (if not delivered energy). Due to the relatively small case volume to bore diameter, the 6mm ARC can digest a wide variety of powders. Check out our current selection of 6mm GT Rifle Brass below! 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. I was lazy, and using known data from the 6mm AR, I loaded 27.5 grains of H4895 under a 105 Berger Hybrid Target. And Brownells also sells complete Aero Precision 6mm ARC Uppers, starting at $749.99. Essentially, this could mean that you pull the trigger once and it could empty the whole magazine. The AR-15 platform features a higher magazine capacity. Now, on to what goes beneath the projectile. Flat trajectory minimized wind drift, high sectional density to aid penetration, tame recoil allowing spotting your own shots and the potential for exceptional accuracy are all part of the ARC package. 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. _gaq.push(['_setDomainName', '.accurateshooter.com']); So, I suggest staying loading bullets 90 grains and heavier. (function() { All barrels will be rifled with a 1-7.5 twist. 6mm ARC - Practical Reloading | Page 4 | Shooters' Forum (Speer 75 grain HP on top of 25 grains of IMR 4895. SP = Small Pistol . 2829 0 obj <> endobj 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). Conceivably, this means. %PDF-1.6 % 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 . Anyone have any velocity data with a 14.5"? EkD>7#q4(BBFh47Nh1nF+ZB4. 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. I just loaded them to 2.25 COAL to be mag friendly. 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. As for the selection, the burn rate chart has a listing of 22 powder options, but not all are good for semi-automatic rifles. Small mag is if you want fast loads. So why don't we all shoot the 6 BRs and be done with it? 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. David Fortier is with CEO of Silencer Central Brandon Maddox at Roundtable 2022. 6mm ARC vs 308 WIN 6mm ARC Rifles | Wilson Combat : 0.405 This was way over pressure yielding speeds in the 2730 FPS range, heavy ejector swipes and unusably expanded primer pockets. 2453 C.O.L. So hopefully when it warms up and the wind subsides I will see if I can repeat this group. Except for Reloder 15, Precision Rifle and Varget, all are fine-grained or spherical powders that flow like water. I suggest considering CCI BR-4s. The 6mm ARC does what much larger cartridges can and everything that smaller cartridges cant. As 6mm (.243-inch) has been a fairly popular all-purpose caliber for decades, there are a lot of good choices. Available in different sizes, we are sure to have what you need. Top velocities with 108- and 110-grian bullets reached 2,575 fps. It even beats the 6.5 Grendel at extended yardages. You may not reproduce original text or photos without advanced permission in writing. The neck was set back, allowing more room for long-for-caliber 6mm projectiles in standard AR magazines. The standard bullet diameter for 6 mm caliber cartridges is .243 inches (6.2 mm), the same diameter used in the .243 Winchester and 6mm Remington cartridges. 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. The 6mm ARC achieves substantially better ballistics than the 223/5.56. Everything else bolt, magazines, gas system is compatible with 6mm ARC. Sign up to receive new product announcements, special offers, and the annual product catalog. Personally, I think this is the perfect choice for an AR Velocities for long, high BC bullets are perfect for long barrel life and excellent accuracy. Lapua 220 Russian brass is the only candidate I found to fire form cases from. All barrels will be . If you like Vihtavouri powders, then consider N140 and N540. The new 6mm ARC is basically a 6.5 Grendel necked down to 6mm, with the shoulder moved back around .030. Theyre also made from the same material and use the same explosive. All Firearms News subscribers now have digital access to their magazine content. Brandon explains how his company has streamlined the suppressor buying process. What Is the 6mm ARC Cartridge? Buuut it is so stinking dirty suppressed. 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. * While 6-6.5 Grendel shooters are known to run stout pressures, the new 6mm ARC cartridge has a relatively moderate Maximum Average Pressure (MAP) rating of 52,000 psi according to the official SAAMI specifications. Remember though, Berger bullets will be the longest you will use, so verify your barrel twist.