It would also be used as a deer rifle for new shooters (small deer, sitka blacktails). Using QuickLoad, I worked up the following load: For this load, I shot a group of 5 shots on the chronograph, and observed the following: This load produced very mild indications of pressure on the case rim, and functioned in the rifle well. The original 6 mm/.244 Rem is basically the .257 Roberts/7x57 case necked down, while the 6 mm BR Rem/Norma (only slightly different case specs between them) are much shorter cases. In very simple terms, the 6mm ARC's exterior ballistics exceed . In 1955, on the heels of the .243 Win., the .243 Rock Chucker was modified slightly by Remington and became the .244 Remington. This colored our perception of lower velocity rounds. Does the 6 mm arc not have 30 degrees shoulder angle?is wikipedia wrong? muvef Junior Member. 6mm ARC The newest 6mm factory round is the recently announced 6mm ARC (Advanced Rifle Cartridge). All Shooting Times subscribers now have digital access to their magazine content. Mid-20th Century 24-calibers shoot much faster than the new Hornady 6mm ARC, but are they ballistically better? Variations on a theme. In the 1970s, Remington experimented with a .308-sized case that was about 1.5 inches long and had a small primer pocket (like the PPCs). Short, relatively fat cartridges concentrate powder near the ignition flame for an even, consistent burn with a tendency to improve muzzle velocity consistency. Unlike the NGSW the 6 ARC is a standard cartridge fired from an AR-15. 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. | 6.5 Grendel vs. 6mm ARC Ballistics. (Maybe in 6mm ARC? (Ret.) wasn't as big a fan of his 4 oz trigger but all in all I want one someday don't know enough about the 6 arc to comment on it . To keep the 115-grain Berger VLD (G1 B.C. ZEV cleaned house using the David Tubb DTR reticle. In my next story Ill be deep-diving on the CMMG Endeavor 20 6mm ARC AR-15, and will be stretching its legs to greater distances. The sudden popularity of the AR-15 platform rifle has inspired a flurry of new, short cartridges that fit its short magazine. So adopting the cartridge should be, for many shooters, convenient and affordable. I did not try to shoot past 900 today because of limited ammo and Applied Balistics indicates that at 2550 FPS MV these 108s are going transsonic just past 900 and I didnt want to waste the last few shots. Joined. Alaska. An eighteen-inch barrel, maybe even a. only ever shot someone else's 6br but I have to say I liked it a lot . It stays supersonic farther downrange than the 308 Win. Five shot rapid-fire was not bad. Due to the lower MAP, the performance of 6mm ARC ammunition loaded to gas-gun pressures will, on average, be less than firearms loaded to bolt action pressures when using the same barrel length. Distance is its forte and with its 2020 introduction and ability to flatten the trajectory curve, the 6mm ARC might ought to have been called the "Corona cartridge.". I also measured five fired but not resized factory 6mm ARC cases. The need for a new, uncommon bolt/ face/ assembly kills 6 arc in the real world for bolt guns. : 0.330 VELOCITY (FPS - feet per second) POWDER 3000 3100 3150 3200 3250 Dropped on my M16 lower doubles and triples stayed on a full-sized silhouette out to 25 yards, stretched doubles to 50 yards. But because 6mm arc is currently $34.95 per box and 6mm CM is $31.50 there is not enough cost difference to worry about since I don't reload yet . I decided that since I didnt have any load data, I would have to generate my own! Hi Gavin, I tested dozens of loads, mostly with benchrest bullets, and the rifle shot well. The benchrest crowd has not been overlooked in the 6mm derby, and one cartridge literally rewrote the record book. From a precision standpoint, 6mm ARC does tend to beat 224 Valkyrie. bullets of the 6mm Creedmoor. 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. Some smaller capacity, low velocity rounds are tailored for sub-sonic, low-report firing for clandestine military engagements. Follow up to the above. If this development strikes you as the opposite of progress, you might have spent the bulk of your life in the 20th century. Both hit at around 12 mils, the 6ARC just hit harder. 6.5 Creedmoor vs. 6.5 PRC: Which is Better? of Israeli Defense Forces, joins David Fortier for an exclusive interview for Shotgun News. Your email address will not be published. First, the cartridge was designed for dual purposes: deer hunting and varmint hunting. Many shooters necked the BR case down, and a 6mm version ultimately became the 6mm BR Remington. Lower velocity means less flame and heat for longer barrel life. Above: 6mm ARC case capacity measured 33.96 grains H2O. Its accuracy is simply phenomenal, and it makes a superior varmint cartridge. When youre shooting dozens and dozens of rounds in a single competition, barrel life matters. Were going backwards! | 0 comments. Commercial 6mm ARC loads feature bullets selected to deliver ideal performance for hunting, match shooting, and personal protection applications. I used the lathe to modify a 6.5 Grendel bushing die and ended up with a 6 ARC die. The powder loads for the test spanned 1.6 grains and I fired 24 shots and only two were more than 1 MOA out. Consider the 7mm, 300, 338, and 375 Remington Ultra Magnums. However, 25.3 inches of drop at 400yds is by no means terrible. Most problems outside a war zone are handled nicely with 20 rounds and a couple of spare magazines. Hunting inside 300 meters the 300 HAMR rules that realm. That wont change and logistically the 6 ARC is still at baby steps. Consistency remained about the same with 2 or 3 out of five the norm. If this rifle is any indication all it took was a barrel, bolt, and magazine swap. Poll: Whats your number one reason for reloading? This means that during a 1,200-yard flight to the target, gravity and wind will pull and push on the 6 mm ARC between one- and three-tenths . The 6.5 Grendel was made by modifying the 220 Russian parent case. This is exactly what we would expect. 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). He gave it a 32-degree shoulder and called it the .243 Rock Chucker.. The Zev Technologies .223 is still the most fun you can have with an AR out to 600 meters. All Rights Reserved. Comparing 6mm ARC to 6mm CR is is apples and oranges again. I hired a Mossberg in 243 Winchester to take this multi-tined TX Hill Country whitetail with a single shot. Excessive recoil, debilitating blast, and marked overpressure remain its claim to fame, thereby making it unsuitable for comparison for most of us. The newest 6mm factory round is the recently announced 6mm ARC (Advanced Rifle Cartridge). Given the need for a centered shot on a 6 roundish target from 100 to 300 meters, I would take it without hesitation. Which it does pretty well within those limitations. It accepts all the same components as the Grendel, including the magazine and bolt, so all you need is a 6mm-specific barrel. What explains that? The 6mm ARC is a more aerodynamic bullet than the 6.5 Grendel. Heres a quick look at the best of this cohort. I did a ladder test one time at 300 meters on an electronic target, the Norwegian ones that have verified accuracy. This made sense. All barrels will be . Mag. Joseph Von Benedikt visits with Aaron Oelger from Hodgdon about the unprecedented demand on the shooting supply industry. The 6mm ARC's more efficient projectiles with their high BCs provides superior exterior ballistics with noticeably less wind drift, higher retained velocity and greater retained energy. How do lower velocity cartridges improve long-range shooting? Its a 6mm cartridge similar to 6.5 Grendel, built for the AR-15 platform, Its optimized for bullets in the 103 grain 110 grain range, Its got more velocity and less recoil compared to 6.5 Grendel, It shares the same parent case with 6.5 Grendel: The 220 Russian, Its capable of launching a 6mm 108 grain projectile approximately 2800 FPS from a 24 barrel, BARREL: 20, 1:7.5 twist, 6mm ARC, MT 416SS, SBN, MUZZLE: MUZZLE: SV Brake, threaded 5/8-24, GAS PORT LOCATION: Rifle Length with SLR Adjustable Gas Block, RECEIVER: Forged 7075-T6 AL M4 type upper, AR15 type lower, FINISH: Cerakote Receivers and Hand Guard, Find a cartridge similar to 6mm ARC thats supported in the, Determine the 6mm ARC case capacity for my lot of brass (H2O method), Adjust Quickload model for case capacity and any other factors, Model loads looking at pressures and velocities (using 6mm PPC load data as a backup sanity check), It shares the same parent case with 6mm ARC (the 220 Russian), Its case capacity is very close (1.9 grains of H2O different), Likely in reference to a 24-ish test barrel, No AR gas system present to reduce velocity, Start with observed 20 velocity data for my H-4895 load (2,631 FPS), Look at the QuickLoad projected velocity difference between a 20 and 24 barrel, Add the velocity difference to the actual measured velocity, Account for ~1.18% reduction in velocity (calculated from my 224 Valkyrie AR-Bolt side by side testing) due to the AR-15 gas system, I had limited components available to test, results could get better from here (more velocity with less pressure), These loads may be hotter than what will function reliably in a typical AR-15 (and may not be safe), I will follow up with testing of Hornadys factory ammunition with the 108 grain ELD-M bullet. Using already available magazines, bolts and the AR15 platform is a big plus. Jeff, I would have it fluted well to reduce weight and chop +/- 20" - with 95 BTs, it will be a deer slayer, varmint bullets for said creatures. 6mm ARC vs 6mm BR. I wasn't going to take a shot at more than 50 or 60 yards and would take my time before I squeezed the trigger. H2O, and a 6mm BR, around 39.0 gr. wasnt the only knife in the drawer, even if it was the sharpest one. In an effort to salvage the .244 Rem., in 1963, Remington changed the name of the round to 6mm Remington and the barrel twist rate to 1:9 inches. Savage Model 110 Timberline 6.5 Creedmoor Rifle: Full Review, SIG Sauer P365 Pistol Now Offered in .380. 6mm ARC vs 6.5 Grendel. It is formed by using a shortened .22-250 Remington case, and it has thinner walls for increased powder capacity and the Ackley improved shape. You are using an out of date browser. You can get a 6 to 6.5 pound rifle which can shoot high B.C. I had three high capacity magazines using white followers, two 17 rounders with green followers. continues to ride the crest of the 6mm-caliber wave, the tried-and-true 6mm Rem. Not a single stoppage amongst them too include a couple 17 round full auto mag dumps. GD. Save my name, email, and website in this browser for the next time I comment. In most woods that I was hunting in at that time, I couldn't . While almost any combination of components seems to shoot well, my favorite powders are Hybrid 100V, Reloder 17, and Power Pro 4000MR. Company literature in 1955 described both bullets as Soft Point.. Ammo capacity is about the same, 20 rounds with the longer Grendel mags. 6mm ARC is so new that as of the writing of this article, published load data did not exist! Cal December 9, 2018 Leave a comment. I know what. 6mm BR vs 6mm BRA vs 6mm Dasher. LMT shot softer, exhibited a tank-like build, and proved great to shoot. The overall length of the 6mm ARC is 2.26 inches which is almost half an inch shorter than . Whats the plus delta on each? I had a Remington Model 700 BDL Varmint rifle rebarreled with a heavy stainless-steel barrel chambered for the round, and it lived up to its reputation. Just pouring powder in and checking it by eye. For me because I have a cz527 I can convert enough said. But no matter, new is new. I never cleaned it with anything. Why step up to a loud, hard-kicking 300 PRC when youre dropping your deer with your 6.5 Grendel as far as you can shoot in your hunting field? These did not shoot well at all for me at 100 yards with an average of 1.9 MOA and after two lackluster 5-shot groups, I discontinued testing with them. Taurus has redesigned this sporting pistol for performance. Mag. 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! By accepting these terms, you agree that you alone are solely responsible for your own safety and property as it pertains to activities, procedures, techniques, or practices described in whole or part on this website. Ballistically, thanks mostly to heavy-for-caliber, high B.C. I don't know the velocity, but I suspect something under 3k. What does the 6 ARC do that the 6 BR REM hasn't been doing for over 50 years? Or it fits the extra-short AR-15 platform rifles beloved and preferred by many shooters. The 6mm Rem. HunterMann Well-Known Member LRH Team Member Joined Jan 18, 2021 Then theres Hornadys new 300 PRC, Weatherbys 6.5-300 Weatherby, and several more modern speed demons. The old 243 Winchester can beat that by about 300 fps. I shot out to 700 yards next with .4 to .5 MOA accuracy and ended the day putting 3 out of 3 shots on the 900 yard gong in a .4 MOA group. The 6mm ARC is designed to run in existing in M4 rifle platforms. What does all this mean? Eight reasons to embrace the Hornady 6mm ARC and other low-velocity cartridges. When using shorter barrels, which are common on gas-guns, the difference will be even more pronounced. Or hunting? Between 600-1100 was a different story, everything but the 6.8 SPC did well out to 800 meters including the 6 ARC hitting with a bit more authority than the rest. Doesn't the 6mm ARC have a smidge more powder capacity over the 6mm BR? As a follow-up exercise, I plan to use QuickDesign software to create a more accurate model for the 6mm ARC. (roughly .530 to .540 B.C. I also confirmed velocity for existing conditions. Once lasers hit the fields, the game began to change. 600m: Out of ten cold shots at 600 meters 7 hit home, pretty impressive. What about your 6.8 SPC? In addition to the above comments there is some confusion regarding the 6 mm ARC's performance. Factory loads were available, and it was moderately popular for both varmint and deer hunting and target shooting. All testing was completed using 108 grain ELDM from Hornady. NB / Canada. The 6mm ARC was built by necking down the 6.5 Grendel. It also produced the best accuracy as seen here: This load is a good performer, but I wanted to see if I could get more velocity from the 108 grain ELD-M bullets, so I tried a different powder! The Hornady manual states that this second set of data should not be used in gas-guns. Location. LMT MWS, 20 224V, Sig Sauer Tango 6, 3-18 MRAD Dev-L using Federal GMM 90 grain SMK and an 18 SS Match 6.8 SPC with 110 Grain VMAX. If you are looking for reams of data or ringing steel the size of a car move on, I am NOT that guy, you will be very disappointed. Lighter and tougher and more precise than ever, it's the perfect back country hunting rifle. Hornady is claiming its 6mm ARC will yield 2,750 fps with a 108-grain ELD-M bullet from a 24-inch barrel. 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. Hornady Precision Hunter 6mm ARC 103 Grain Jacketed Soft Point Centerfire Rifle Ammunition, 20, SBT (Save 10%) $2.15/Round. .458 Winchester Magnum History: The Complete Story, 6.8 Western Ammo Options: The Load of Long Yardage, A World Record Attempt: Practice Round and Media Day, Interview with Israeli Defense Forces, Part 1. pavementends Junior Member. I also shot mine with an Ultra 9 direct-thread suppressor. It's wearing a, Finally, we started seeing heavy, high B.C., very low drag bullets that improved trajectories by minimizing drag and conserving energy. Will it become my 1000 yards rifle, maybe, it is working against the 224V and the jury is still out and will be until I get my hands on their TAP round, Ill keep you posted. Its almost boring. 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. 6mm ARC quick facts: It's a 6mm cartridge similar to 6.5 Grendel, built for the AR-15 platform It's optimized for bullets in the 103 grain - 110 grain range It's got more velocity and less recoil compared to 6.5 Grendel It shares the same parent case with 6.5 Grendel: The 220 Russian 1,226. It debuted in 1955 and has been immensely and justifiably popular ever since. Ok from the perspective of one 6mm ARC lover. I have handloaded the .243 Win. Poll: What Progressive Reloading Press Do You Use Most? Standard practice is to start tweaking burn rates, bullet weight and weighting factor to make calculated muzzle velocity match actual. Velocities were established from a 24-inch barrel. Campfire Outfitter . They held a very consistent 34.58 grains of water. Shots were aimed from a bi-pod, the rifle on the bench with me standing behind it. All Rights Reserved, Borden's 7mm Rem. It is based on the 6.5 Grendel case, and time will tell if it, too, becomes one of the great ones. How about the 26, 27, 28, and 30 Noslers? Its why the 308 is absent from this test. Hornady's new 6mm ARC was designed for a specific military requirement; the 108-gr. Short, fat cartridges leave room for long necks that hold long, high B.C. The 6mm Creedmoor and it's smaller siblings like the 6mm Dasher, BR . That flattens trajectories somewhat and applies a bit more punch to the game. Twist rate is 1:7.5 to stabilize the long 105- to 108-grain high B.C. They still do. Did not hit as hard but it was no slouch, anything it hit would notice for sure. Its all about the lack of correlation between mapping out rounds on a computer and sending them downrange at targets measured in yards. The laser rangefinder, in part. Honey Badger, XM2010, C22, R4, MSR, CSR, AAC, BARNES BULLETS (https://www.youtube.com/watch?v=ykTfyrMiXps). Some examples include the 6mm-204 and the 6x45. As much as I like shooting my 6 Creedmoor, every builder outside custom shops tells me it is a complete PITA to get to work on a large scale using factory ammunition, a real consideration. This 6 ARC was an excellent performer, not a precision rifle but thats not what its for. . The strings netted three or four out of five, misses were off the edge. Thats only a minor impediment for serious riflemen. SPC, 350 Win. Has any one who has both ever measured the case capacity (H2O) My google foo has failed me. In the case of a bolt gun, I'm sure 6ARC would do great but 6BR has quite a few advantages in case/neck dimensions alone. Reduced recoil minimizes flinching and enables shooters to see their hits or misses so they can correct for subsequent shots. When it comes to the 6 ARC vs. everything else, it felt like carrying a 224V with the same length barrel. With the 6PPC you have to turn necks and fire-form the cases from smaller 220 Russianbrass. Ballistic Calculators & Field Results . Use load data at your own risk. SuperCub. You are here: Home > AR Parts > AR-15 Parts > AR-15 Upper Parts > AR-15 Barrels > 6MM ARC AR-15 Barrels 6MM ARC AR-15 Barrels Showing 1 - 16 of 16 items Sort By: Go Page of 1 For those using 6.5 Grendel, its a 5-minute barrel change. The 6 ARC proved at 2720 fps with a Density Altitude of 8800 feet. 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. V-MAX Item No. The high B.C. The 224V and 6 ARC were identical to shoot and will probably stay my dedicated 1000 yard rifle (s) both ringing steel pretty easily. Minuteman. You might be surprised to discover you've come out on top! I had a 20 AR-15 to test with, so I had to do some math :). Some tactics never die, they just get regenerated. The first groups were the 6.5 Grendel cases that I modified for the 6mm ARC. Some have long and storied histories, while others are just now making their own legends. Team Hornaday is the master, bar none. In the 1970s, the .222 Rem. Facebook; Twitter; Pinterest; Related Articles. The Hornady 6mm ARC takes the 24-caliber into record territory the slowest muzzle velocity of any commercial cartridge propelling .243 bullets. H-4895 is closer to the 6.5 Grendel sweet spot, so I thought it would be worth a try. ), 6mm ARC brass (new), 6.5x47 (New) Sierra 6mm Gamechanger 90gr and 6.5 130gr Gamechanger, Update on my BadRock 6mm ARC bolt gun and new Hornady Podcast, Custom 700 in 6mm Norma BR (ARC, Timney, Bartlein) *Price drop*. 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. Joseph Von Benedikt is with Rafe Nielsen of Browning to take a look at a new X-Bolt series rifle. Low velocity coupled with relatively light bullets reduces recoil. Clearly better to galivant around the countryside with then an AR10. Unlike the WSSM, the Hornady 6mm ARC was engineered around a long, high B.C. has not been on game, some loads stand out. The deer load had a 100-grain bullet, and the varmint load carried an 80-grain bullet. This increased size means the 243 has a case capacity of 53-54.8 gr H2O. .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; height: auto; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }, Ultimate Reloader LLC / Making with Metal Disclaimer:(by reading this article and/or watching video content you accept these terms), This section is from my 6mm ARC Announcement Post. I must note here how hard it hit. The pair developed the .22 PPC in 1975, and the 6mm PPC followed in 1987. No math test required. Mag., the 6mm-204 essentially recreates the 6x47. There is no reason that it shouldn't, it is basically a blown out 6mm PPC which is probably the gold standard for accurate cartridges. Also 6X47 has also interested me. Maximum Cartridge Overall Length is 2.26. These developments are interesting, and the supreme accuracy achieved by several of the wildcat cartridges make them worthy of mention here. It suffered no vertical stringing. However, the 6mm BR is superior at 300m and beyond. My speed is significantly slower ( 50 FPS) than Gavins at 2552 FPS with an SD of 6. It fits in an AR mag. Shop 6.5 Grendel Ammo It still turns the steel and is very consistent holding 9 mils at the top. All of these are heading in the opposite direction. There are 6ARC bolt guns out there. Then the AR-15 platform exploded and the game changed some more. Im interested in a direct comparison to the 224 Valkyrie and the 6 mm ARC. It recoils about 50% less than any long-range 308 Win. : 2.095" G1 B.C. You could get hits at 900 meters with all of them, 5 shot strings were easiest with the Creedmoors and they ruled at 1100 meters. shoots the same cadre of 0.243-inch bullets as the .243 Win. Poll: What handgun cartridge do you reload most often? 6mm ARC vs 6mm BR. Once we could pinpoint exact distance to target, maximum velocity didnt matter as much. Both bullets produce deer-slaying accuracy. I cant see it, but for those who like to try something different its is a really nice option. I cant speak for the ARC, but for the 6BR. You won't have to fiddle with necking/reforming in 6XC. The 6.5 Creedmoor shoots 6.5mm/.264 class projectiles while the 6mm Creedmoor is necked down to shoot 6mm/.243. It is a 6 BR REM barrel that came off a rifle that I bought for the Remington 600 donor action. [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. It hits way above its weight class. Oct 7, 2010 530 254 44 Council Bluffs, Iowa. Just striving for accuracy. Every rifle is a proven performer to 1100 meters and an AR using the same or similar suppressor, no brakes, flash hiders or conventional suppressors. So, the 6mm ARC outperforms any magazine length 5.56x45mm NATO load simply through a combination of sheer horsepower and more efficient projectiles. The ARC seems to be knocking on the heels of a BR. ELD (l.) makes for an excellent long-range target round, while the 103-gr. I got hold of the barrel and some ammunition, the rest was already around and was mounted in a proven build, my Seekins Precision NX15. It will be interesting if they chamber this in micro-action bolt carbines like the Grendel has been. Those I know that can pick their own stuff are still proving out the 224V and many like it, not sure the differences are enough right now, time will tell. The rim diameter of the 6mm ARC is 0.441 inches, while the 243 is slightly larger at 0.471 inches. Just looking for a ball park difference. This is the Great short, fat 6mm PPC that was developed by Dr. Louis Palmisano and Ferris Pindell. The .240 Wby. The 6x45 is the .223 Rem. can exceed it by 500 fps and the 240 Weatherby by 600 fps. It started as a popular wildcat before its approval by SAAMI. Factory match rounds start at 155 grains and go up. I have a precision set up AR in 224 Valkyrie. just get a 6mm hagar. With the super bullets and modern powders of today, I cant imagine a better deer and antelope round. It is chambered in many very good and some very inexpensive rifles, which have helped make it the hit that it is. Using a LabRadar chronograph to measure velocities, we saw an average of . However, I would not want to carry it far. Sort by. Ultimate Reloader, LLC and Making With Metal can not be held liable for property or personal damage due to viewers/readers of this website performing activities, procedures, techniques, or practices described in whole or part on this website. Subscriber Services. Travis224 Sergeant. Outside a few very special special units, the military gets whats issued. All gunsmithing procedures should be carried out by a qualified and licensed gunsmith at their own risk. In my mind, if 6BR would readily fit in a small frame AR there would be no reason for 6ARC. I purchased a 6mm ARC barrel from Brownels when they first came available. 2730 FPS and way over-pressured though SDs were single digits, groups were all just over 1.25 MOA. Give a Gift Barrel-length is an issue. The hardest thing about ladder testing for the 6 BR is deciding which load is the best because they are so good. The bullet drop for the 6.5 Grendel is slightly greater because it's a larger bullet. Required fields are marked *. I'm a 6.5x47 lapua man myself. remains a solid performer with todays high-tech bullets, new powders, and fast-twist rifle barrels. Hornady found a solution with the 6mm ARC. L. to R. are Berger 95-gr. can exceed it by 500 fps and the 240 Weatherby by 600 fps. Long-range started with a cold shot at 600 meters using the reticle followed by one at 1100 meters using confirmed elevation dialed in, holding for wind. Blue collar reloading had 25 boxes of brass right now. And it made the new round available in the very attractive and accurate Model 700. We're going backwards! Make sure to watch till the end. This morning, using the same scale and method as Gavin, I measured the case capacity using water weight in two sets of fired but not resized cases. There aren't any markings on the barrel, but it was advertised as being a 6 BR REM and the reloads that came with it seemed to chamber fine when the barrel was still attached to the action. Ran great with solid and repeatable accuracy using the same bullets as the 6CM. The 6mm GT easily attains more than 3,000 fps. Geissele fixed gas block was retained with no change in brass ejection pattern or bolt speed. Recoil is primarily a product of bullet weight. It doesn't need a .308 sized action to work. Introducing the Silencerco SCO15 Lower Do We Need Another AR-15 Lower? Read it here. Accordingly, the firm introduced two loads. Thread Modes. But do you know how to properly use them? Arguments amongst experts (real and self-delusional) spewed forth with ferocity. Ill be publishing a full overview story covering this rifle, but in the meantime, here are some specs from the CMMG Product Page: CMMGs ENDEAVOR line of rifles are now available in Hornadys new 6mm ARC (Advanced Rifle Cartridge). But on paper it looks promising. It has had moderate success in various target venues. 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. if you are going to reload for it and want to shoot light bullets. Low recoil is also noted. Soft-report, low-recoil cartridges prove ideal for starting new shooters, many of whom never see the need for escalation. Yes it is designed to run in AR15-platform rifles. Designed for superior long-range accuracy, the ENDEAVOR line features a 20-inch barrel so that you can squeeze out every drop of ballistic performance from this exciting new caliber. 6 BR REM, not 6.5.