Short, relatively fat cartridges concentrate powder near the ignition flame for an even, consistent burn with a tendency to improve muzzle velocity consistency. Another round that was designed for the steel shooters is the 6mm BR Remington. Obviously, they are not nearly as popular as the 6mm hunting cartridges. Poll: What Rifle Cartridge Do You Reload Most Often? Wilson Combat 6mm ARC Tactical Hunter AR-15: Review Whats the plus delta on each? Im interested in a direct comparison to the 224 Valkyrie and the 6 mm ARC. 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. just get a 6mm hagar. If the wind is changing from 4 -7 miles an hour (and it ususally is), you will have more trouble bracketing or holding the 6BR in the 10 or X ring. 1,226. I tried the hand loaded 27 grain Varget loads and they shot a pleasantly surprising .5 and .52 MOA group at 100 yards. In 1955, on the heels of the .243 Win., the .243 Rock Chucker was modified slightly by Remington and became the .244 Remington. Legend, 450 Bushmaster. In the 1970s, the .222 Rem. In 100-200yd benchrest competition, the 6PPC is still the "winningest" cartridge around. Clovered groups were the norm for both. I fall into the latter category. Short, fat cartridges leave room for long necks that hold long, high B.C. The rifles Barrett supplied for the DoD are top-notch, but they are just a modified REC-7 DI. Retested today with 26.3 grs. Its why the 308 is absent from this test. Barrel-length is an issue. If this development strikes you as the opposite of progress, you might have spent the bulk of your life in the 20th century. Just pouring powder in and checking it by eye. In my mind, if 6BR would readily fit in a small frame AR there would be no reason for 6ARC. This is only a slight victory, however. 6mm AR (L), 6mm BR (R) Good luck, John 1shot Mar 4, 2013 #4 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. The 6mm ARC is a more aerodynamic bullet than the 6.5 Grendel. Using 26 to 28 inch barrels in bolt guns, 6ARC may be easy for those that do not reload or have primers. But no matter, new is new. NB / Canada. Benchrest (BR) shooters will go to almost any length to shave 0.001 inch off of their aggregate average, and there is a diverse assemblage of 6mm wildcat rounds for BR shooters. Both can produce sub-MOA groups, but 224 Valkyrie seems to spread out faster than 6mm ARC. pathfinder76 #14942491 06/04/20. When youre shooting dozens and dozens of rounds in a single competition, barrel life matters. Does the 6 mm arc not have 30 degrees shoulder angle?is wikipedia wrong? 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. Your email address will not be published. I chose to start with Varget because of what I read about 6mm PPC, and I have a lot on hand! In the 1970s, I had a Remington Model 700 BDL so chambered, and I took my first Texas whitetail with it. Sort by. 6.8 SPC The 6mm ARC has more match bullet options and is a better long-range performer. GD. Factory loads were available, and it was moderately popular for both varmint and deer hunting and target shooting. 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. 100-300m: Consistent 100 meter groups in the .60 -.75 inch range, 2.5-3.0 inches at 300 meters were the norm. There is no magnum behind those titles, yet they are fastest or close to fastest in their calibers. Review: Hornady 6mm ARC. The 6 ARC can be built on mini actions such as the CZ 527, Howa Mini, Sako AI. Tests varied from 100-1100 meters (110-1200 yards, for the metrically challenged). V-MAX Item No. Hornady found a solution with the 6mm ARC. It is versatile, in that it is suitable in both ARs and mini-bolt guns for hunting, personal protection, and target shooting. That flattens trajectories somewhat and applies a bit more punch to the game. Velocity is 2,827 fps, and out of my Browning A-bolt II, it groups into 1.10 inches. The 6 ARC was consistent, precise, and repeatable both on cold shots and groups but was about the middle of the pack with the rest. Hornadys 80-grain GMX and 103-grain ELD-X and the Speer 90-grain Hot-Cor all are accurate and deadly. Mag. Here was my strategy to extrapolate my results to the likely scenario of the 24 test barrel: Heres the work-up: (pressure listed is MAX projected, not average). 12 Great 6mm Cartridges - Shooting Times You can get a 6 to 6.5 pound rifle which can shoot high B.C. The new Mossberg rifles chambered for the new 6mm ARC should give similar results with even less recoil -- not that the old 243 Win. Shooters greeted the .244 Rem. LMT shot softer, exhibited a tank-like build, and proved great to shoot. Oct 7, 2010 530 254 44 Council Bluffs, Iowa. bullets. 2730 FPS and way over-pressured though SDs were single digits, groups were all just over 1.25 MOA. For example, the data in the Hornady 11th Edition Manual for an 18 in (457 mm)-barrelled AR-15 platform firearm was on average 200-300 ft/s (60-90 m/s) less than the data for the 24 in (610 mm)-barrelled CZ 527 bolt action rifle. If you already have an AR chambered in 6.5 Grendel, the ONLY thing you need to change is the barrel. Would love to get this thing shooting consistently under .5 with enough speed to reliably ring steel at 1000. 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. Some have long and storied histories, while others are just now making their own legends. Unlike the NGSW the 6 ARC is a standard cartridge fired from an AR-15. Guide to 6BR, 6mm BR Norma, 6mm, 30 BR cartridge, with Reloading Data No knobs, just a hold using the reticle, find it, read the wind, hold, and press, adjust as needed and repeat. A fun challenge. The Hornady 6mm ARC is at its best with long for caliber, high BC bullets like this Berger 108-grain Elite Hunter. CZ 527 in 6 MM ARC discussion starter - CZForum.com In a 10-mph crosswind the 6mm ARC 108-grain bullet drifts 10.9 inches at 400 yards. What about your 6.8 SPC? Thank you for this timely video. It's also legal for deer hunting in more States and arguably more effective. While it is the same length of 20, my twist is faster at 7 rather than Gavins 7.5. 6mm ARC Rifles | Wilson Combat As Jackie says there's a big difference in the cases. Absolutely, but not significantly better than the 224V with the 90 grain SMK. Full house loads will likely burn about 27- to 29-grains of suitable powders such as H4895, Reloader 15, and AA 2520, so handloads should be relatively inexpensive to build. : 2.095" G1 B.C. And its performance is effective with a variety of bullets. 6 BR REM, not 6.5. A quality shooter can certainly compensate for 3 inches of difference, so while it's a victory for the ARC, it's a narrow win. Doesn't the 6mm ARC have a smidge more powder capacity over the 6mm BR? 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. Long-range precision shooting is one of the fastest-growing segments of the shooting sports. H4895 with 5-shot groups from the high .5s to 1.0 MOA. 6MM BR Northwest Magnum 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. No factory rifles or ammo was available, but for a while, Federal offered nickel-plated 6x47 cases. ELD-X . This makes it a factory cartridge, although no factory ammo is available, and guns chambered for it are all custom jobs. Even with the cost of the Proof Research barrel it doable. Those who are going to like or prefer the 6mm ARC will likely appreciate the 6mm ARC for its utility in either the AR 15 platform & or the mini action bolt action rifles. The hardest thing about ladder testing for the 6 BR is deciding which load is the best because they are so good. 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. 6mm ARC - Wikipedia Shooters needed cartridges that would fit these increasingly popular, super-short actions. The overall length of the 6mm ARC is 2.26 inches which is almost half an inch shorter than . muvef Junior Member. Check one out and join the race to the bottom. 6mm ARC Review : Fad or Viable Cartridge? : Gun University However, 25.3 inches of drop at 400yds is by no means terrible. 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]. Hornady's NEW 6mm ARC & Odin Work's Barrels - GunsAmerica Digest GD. My speed is significantly slower ( 50 FPS) than Gavins at 2552 FPS with an SD of 6. Do you load for a Uintah Precision bolt upper? L. to R. are Berger 95-gr. Its small, and its availability is limited, but its accuracy and ballistic performance really qualify it for the Great category. Modern Outfitters MC7, Proof Research 22 6CM, Bushnell Elite Tactical XRS 4.5-30, Hornady 108 grain ELDM. Ballistic coefficients are about equal, with a slight edge going to the 6mm 108 ELD . Larue Tactical two-stage, small parts are Seekins, the stock is an LMT. Make sure to watch till the end. And just in case some hunter wanted to knock off a deer with his .244 rifle, the company also offered a 90-grain loading. Pretty cool having a light-weight AR-15 that can accurately shoot out to at least 900 yards. The ballistics look great. That will undoubtedly change, but not overnight. Hornady 6mm ARC - First Look - Guns and Ammo .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. Will it supplant mainstream calibers? You will not find better quality and consistency when it comes to Lapua. I had three high capacity magazines using white followers, two 17 rounders with green followers. 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. When comparing 6mm ARC vs. 6.5 Grendel, you simply must ask, Will it do something your 6.5 Grendel wont? Not that I can see. Not a single stoppage amongst them too include a couple 17 round full auto mag dumps. You may know one or two more. Here I am shooting a Smith & Wesson M&P chambered 5.56x45mm. Head to Head: 6 mm ARC vs. 6.5 Grendel - An Official Journal Of The NRA