Maybe, if you are shooting farther out. SPC; the 300 AAC Blackout, 350 Winchester Legend and 458 Bushmaster. I fall into the latter category. I had a heavy-barreled Sako single shot in the 1970s, and it shot like almost all 6mm PPCs: great. In 1955, on the heels of the .243 Win., the .243 Rock Chucker was modified slightly by Remington and became the .244 Remington. All of these are heading in the opposite direction. Savage Model 110 Timberline 6.5 Creedmoor Rifle: Full Review, SIG Sauer P365 Pistol Now Offered in .380. 260RemGuy: I began a five year long search (bribery fest!) The suppressor is an X2Devgroup, Orion X. Its short at 6, light at 16 ounces, and has no backpressure eliminating excess gas. Twist rate is 1:7.5 to stabilize the long 105- to 108-grain high B.C. This makes it a factory cartridge, although no factory ammo is available, and guns chambered for it are all custom jobs. Guns & Ammo's first sample rifle chambered in 6mm ARC was a Ruger AR-556 MPR with an 18-inch barrel. Truth be told, the magnum race is still underway. remains a solid performer with todays high-tech bullets, new powders, and fast-twist rifle barrels. .243 bullet for military (combat) applications in modern, autoloading rifles. Second, it was chambered in the delightful Winchester Model 70 Featherweight, which was a major factor in the .243s huge success. 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. Aug 11, 2020 . The 6 ARC proved at 2720 fps with a Density Altitude of 8800 feet. It is based on the 6.5 Grendel case, and time will tell if it, too, becomes one of the great ones. The 24 Nosler is a terrific performer, so dont let its small size fool you. I cant speak for the ARC, but for the 6BR. That will undoubtedly change, but not overnight. At 400 yards, it has an average bullet drop of 22.2 inches. A World Record Attempt and everyone is out at the range shooting and practicing. Make sure to watch till the end. [citation needed]. I'm a 6.5x47 lapua man myself. The overall length of the 6mm ARC is 2.26 inches which is almost half an inch shorter than . Closer to 43, I think. Availability of factory ammo may be a plus for the 6ARC. The benchrest crowd has not been overlooked in the 6mm derby, and one cartridge literally rewrote the record book. In the 1970s, I had a Remington Model 700 BDL so chambered, and I took my first Texas whitetail with it. The 6mm ARC produces a larger splash signature that allows shooters to self-spot impacts and make rapid adjustments. But at the same time were seeing the 6.5 Creedmoor and 6.5 Grendel; the 6.8 Rem. For a better experience, please enable JavaScript in your browser before proceeding. Here I am shooting a Smith & Wesson M&P chambered 5.56x45mm. Let us count the ways. Really liking the 6mm Arc in this CZ 527 platform. MV consistency matters a great deal at extended ranges. Poll: What Progressive Reloading Press Do You Use Most? Give a Gift VLD Match. Curious? NOTE: This 6mm ARC reloading data is intended for use in bolt action rifles safe for pressures up to 62,000 psi. Mag. Copyright 2000-2023 24hourcampfire.com, Inc. All Rights Reserved. H4895 with 5-shot groups from the high .5s to 1.0 MOA. Its design uses propellants efficiently. A memorized trajectory curve combined with a ballistic reticle or turret dialing could compensate. was not, and the .243 Win. Your email address will not be published. There is no magnum behind those titles, yet they are fastest or close to fastest in their calibers. Location. 100 Factory ammo? Thank you for this timely video. After entering my measured capacities, measured muzzle velocity with 27 grains of VARGET under the 108 ELD-M of 2554 is now within 2 FPS of Quickloads estimated 2552 FPS. Ammo capacity is about the same, 20 rounds with the longer Grendel mags. The 6mm Advanced Rifle Cartridge (6 ARC) by Hornady is a new cartridge that can fire a sleek 6mm (.243) caliber projectile around 2,700 fps with minimal recoil and the 6mm ARC is short enough to fit within the dimensions of a standard AR-15 magazine and it performs very well out of an AR-15 with an 18 inch barrel (what we tested). Its a long-distance for any of these and conditions were anything but ideal. Poll: What handgun cartridge do you reload most often? I tested dozens of loads, mostly with benchrest bullets, and the rifle shot well. In the 1970s, the .222 Rem. Cal December 9, 2018 Leave a comment. Wilson Combat will offer WC-15 6mm ARC rifles with our match-grade, 18" fluted/threaded Tactical Hunter barrel. of H2O, almost right inbetween a 6 mm PPC, around 32 gr. But do you know how to properly use them? As such, SAAMI maximum average pressure is set at a relatively mild 52,000 psi. NB / Canada. A new 100-grain factory deer load completed the rounds metamorphosis. As for the 6ARC, I would take a vital shot at 600 meters without hesitation given a solid platform. 6.8 SPC The 6mm ARC has more match bullet options and is a better long-range performer. SuperCub. If this development strikes you as the opposite of progress, you might have spent the bulk of your life in the 20th century. The 6mm ARC is basically the 6.5 Grendel necked down to hold a .243 bullet with the 30-degree shoulder pushed back a smidgen. Mag. Some may scoff at the old-fashioned roundnose bullet, but it is a terrific game bullet, and I have never had to use a second shot to down a deer. Oct 7, 2010 530 254 44 Council Bluffs, Iowa. Range Report 6mm ARC vs 6 PPC vs 6 Grendel. Some have long and storied histories, while others are just now making their own legends. As their names imply the biggest difference between the 6mm Creedmoor and the 6.5 Creedmoor is the bullet class. The general shooting public loves them for control of vermin like feral hogs. Savage already offers a few more inexpensive options in 6mm ARC though defiantly not a mini action. What about your 6.8 SPC? Has any one who has both ever measured the case capacity (H2O) My google foo has failed me. The 6mm CM at 300yds is 2514 and 1446 and 6mm ARC is 2288-1197. Accordingly, the firm introduced two loads. It is larger than the 6x47L and matching the 6-Creedmore capacity. You might be surprised to discover you've come out on top! I also measured five fired but not resized factory 6mm ARC cases. At the moment, it remains a proprietary caliber with one source of magazines and ammo, unproven. bullets. As you can see, velocities differ by 170 - 220 fps, with the lighter 6mm ARC moving faster from the compact case. Review: Hornady 6mm ARC. case necked up, made especially for ARs. I never cleaned it with anything. As the heaviest rifle tested recoil with the LMT Mars-H in 6.5CM was about the same as the Zev in .223 Wylde, the next best performer for groups. was necked up to 6mm and called the 6x47. The Hornady 6mm ARC takes the 24-caliber into record territory the slowest muzzle velocity of any commercial cartridge propelling .243 bullets. Also 6X47 has also interested me. Posts: 38 Threads: 10 Joined: Aug 2020 #1. You can get the 6XC brass in Norma which is very good. It was essentially the Huntington cartridge, but with a 26-degree shoulder for easier case manufacturing. The 6 ARC can be built on mini actions such as the CZ 527, Howa Mini, Sako AI. Always used manufacturers published load data! It debuted in 1955 and has been immensely and justifiably popular ever since. The Remington 600 action that it came off was set up as a single shot rifle, no magazine assembly, and the Fajen stock was inletted just deep enough for a 1/2" thick aluminum platform to lay the cartridge on. From a precision standpoint, 6mm ARC does tend to beat 224 Valkyrie. just get a 6mm hagar. The old 243 Winchester can beat that by about 300 fps. 6 BR REM, not 6.5. The 6mm ARC is a more aerodynamic bullet than the 6.5 Grendel. Does the 6 mm arc not have 30 degrees shoulder angle?is wikipedia wrong? 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. Each rifle ships with one 10-round magazine. 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. Short, fat cartridges leave room for long necks that hold long, high B.C. Obviously, they are not nearly as popular as the 6mm hunting cartridges. Lighter and tougher and more precise than ever, it's the perfect back country hunting rifle. You won't have to fiddle with necking/reforming in 6XC. There is nothing more competitve than a 6BR Norma when the wind is consistent or low. of Israeli Defense Forces, joins David Fortier for an exclusive interview for Shotgun News. Lapua brass is easy to find, however the bullet (105 Hybrid) and powder (Varget/H4895) most run will be tough to find. All gunsmithing procedures should be carried out by a qualified and licensed gunsmith at their own risk. I therefore feel that Hornadys claimed performance data is feasible. Accuracy was good, with one group I captured on camera (see video) measuring 0.750: I decided to see how fast a 95 grain bullet could be propelled by the 6mm ARC, so I turned to some 6mm Berger Classic Hunter bullets I had on hand, and Ramshot TAC powder. Its accuracy is simply phenomenal, and it makes a superior varmint cartridge. Will it supplant mainstream calibers? Always enjoy your videos. Image shows 243 Winchester, 6mm Remington, 240 Weatherby Magnum, older and faster than the Hornady 6mm ARC. Sneak Peek of Bryan Litz's New Book: Volume III of Modern Advancements in Long Range Shooting. I previously tested them in other calibers. Messages. Doesn't the 6mm ARC have a smidge more powder capacity over the 6mm BR? The author marvels at the gun industry's ability to create ever more cartridges that keep the shooting sports fresh. Party-poopers will gleefully point out that the 6.5 Grendel was based on the 6mm PPC case necked up, and here it is necked back down to 6mm. The need for a new, uncommon bolt/ face/ assembly kills 6 arc in the real world for bolt guns. Some examples include the 6mm-204 and the 6x45. Velocity is 2,827 fps, and out of my Browning A-bolt II, it groups into 1.10 inches. Lets break down a few things about this number: So if you have a 24 bolt-action 6mm ARC rifle, thats the velocity you should expect. In a 10-mph crosswind the 6mm ARC 108-grain bullet drifts 10.9 inches at 400 yards. Learn more here: http://bit.ly/1G7xXag. !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)? Thread Modes. The 6mm ARC does what much larger cartridges can and everything that smaller cartridges can't. It delivers substantially better ballistics than the 223 and offers a much lighter gun/ammo system with 30% less weight than the AR-10/308 Win system. Remington surmised that the .244 would be used mostly as a varmint cartridge, with only an occasional application on deer-sized game, so the initial factory ammo was loaded with a 75-grain bullet. With the super bullets and modern powders of today, I cant imagine a better deer and antelope round. 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. Given this or your typical AR10, no contest, the 6 ARC is much easier to carry. ), 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*. It would also be used as a deer rifle for new shooters (small deer, sitka blacktails). It may not display this or other websites correctly. 75 GRAIN BULLETS SECTIONAL DENSITY: 0.181 DIAMETER: 0.243" 75 gr. Low velocity coupled with relatively light bullets reduces recoil. Read it here. bullets straight and seated above the powder reservoir. with a collective yawn and flocked to the equally new and elegant Winchester Model 70 Featherweight in .243 Win. It will be interesting if they chamber this in micro-action bolt carbines like the Grendel has been. Taurus has redesigned this sporting pistol for performance. Above: 6mm ARC case capacity measured 33.96 grains H2O. I don't shoot past 300 and dead is dead. I decided that since I didnt have any load data, I would have to generate my own! This is exactly what we would expect. Custom Mossberg 500 at the Range and Live Turkey!. I have handloaded the .243 Win. The 6mm Creedmoor and it's smaller siblings like the 6mm Dasher, BR . There is a lot of hoped for or imagined history related to the 22 BR and 6 BR cartridges. wasnt the only knife in the drawer, even if it was the sharpest one. the problem is your average guy wants to shoot a long ways, they don't get the fast and light principles. Hunter aiming AR-15 rifle for which the Hornady 6.5 ARC was created. Thread starter Travis224; Start date Aug 11, 2020; Forums. 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. Long-range precision shooting is one of the fastest-growing segments of the shooting sports. It has had moderate success in various target venues. I am a much better bolt gun shooter than AR shooter. 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. 07-08-2022, 07:47 PM . All of the design criteria that went into the 6.5 Creedmoor that make it a top performer were also used in the development of the 6mm Creedmoor. Whats the plus delta on each? The 6.5 Creedmoor shoots 6.5mm/.264 class projectiles while the 6mm Creedmoor is necked down to shoot 6mm/.243. Based on my best estimation, my H-4896 108 ELD-M load would produce approximately 2,754 FPS in a 24 bolt-action rifle. Joined: Jun 2002. We show you how. But on paper it looks promising. The .240 Wby. H2O. Powder selection is easy: Just stick with CFE 223 and all will be right with the world. rebarreled to 24 Nosler with a stainless-steel, three-groove PAC-NOR barrel. Of course, handloading the 6mm Creedmoor is a reloaders dream. LMT shot softer, exhibited a tank-like build, and proved great to shoot. Mag. Like the grendel though you probably don't want to run high pressures on an ar bolt though. The Barnes 80-grain Tipped Triple-Shock BoatTail sizzles with a velocity of 3,226 fps with a safe loading of VihtaVuori N550 powder, and the Speer 90-grain Hot-Cor can easily achieve 3,115 fps with VihtaVuori N160. With the 6PPC you have to turn necks and fire-form the cases from smaller 220 Russianbrass. 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. 6BR is the easy buttonstandard bolt face, top-quality brass, 30.0gr Varget under any 105-108gr match bullet to start. After consulting Quickload, I also shamelessly lifted Gavins 27 grain VARGET load under 108 ELD-Ms. My Ballistic Advantage barrel is a little different than Gavins. ELD-X . was everything the .244 Rem. The Model 70 .243 Win. This rifle is optimal for 6mm ARC because of the 20 barrel length, and the 1:7.5 twist rate. Share. The 243 has a case length of 2.045" compared to the 1.49" of the 6mm cartridges. 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. It depends on numerous factors, including ammunition used, barrel used, and the shooter's skill, but in general, 6mm ARC is a more precise cartridge. (roughly .530 to .540 B.C. Learn the difference between revolvers and semi-auto pistols and what makes them different. Most problems outside a war zone are handled nicely with 20 rounds and a couple of spare magazines. If you already have an AR chambered in 6.5 Grendel, the ONLY thing you need to change is the barrel. Minuteman. He gave it a 32-degree shoulder and called it the .243 Rock Chucker.. It is versatile, in that it is suitable in both ARs and mini-bolt guns for hunting, personal protection, and target shooting. The bullet diameter of each caliber is the same at .243". It's no surprise Hornady chose a 6mm bullet, either. It fits in an AR mag. It started as a popular wildcat before its approval by SAAMI. Both were termed Pointed Soft Point Core-Lokt bullets. In 100-200yd benchrest competition, the 6PPC is still the "winningest" cartridge around. Photo shows 5 popular short rounds for the AR 15 platform, same short action the Hornady 6mm ARC is engineered to fit. Five shot rapid-fire was not bad. Making those tweaks often feels like creating a powder that doesnt really exist. Then theres Hornadys new 300 PRC, Weatherbys 6.5-300 Weatherby, and several more modern speed demons. SPC, 350 Win. Shooters greeted the .244 Rem. Its release as a commercial round was presaged by a number of successful 6mm wildcats like the 6mm AR based on the Grendel. There are probably better choices in a bolt gun, The 6 BR Rem has been around for a while but not fifty years, yet. muvef Junior Member. 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. The factory 105s shot at 2662 FPS with an SD of 11 as measured by a Labrador. These developments are interesting, and the supreme accuracy achieved by several of the wildcat cartridges make them worthy of mention here. (In the 1960s, Speer made a 105-grain RN just for the .244 Rem.) Outside a few very special special units, the military gets whats issued. if you are going to reload for it and want to shoot light bullets. 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. 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 . With more case capacity, the 6mm BR can drive the heavier, higher BC bullets needed at long distance. Arguments amongst experts (real and self-delusional) spewed forth with ferocity. Only a few metric calibers have been really popular in the United States6.5mm and 7mmso the Great 6mms are relatively few in number. 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. Federal has created a safer, easier and more reliable way to shoot a muzzleloader. It stays supersonic farther downrange than the 308 Win. 600m: Out of ten cold shots at 600 meters 7 hit home, pretty impressive. 6.5 Grendel vs. 6mm ARC Ballistics. Barrel-length is an issue. Required fields are marked *. Commercial 6mm ARC offerings will feature bullets selected to deliver ideal performance for hunting, match shooting and personal protection applications. Recoil is subjective and using the same bullet weight they were all close. All Rights Reserved. That bullet and Hybrid 100V powder recently grouped into a remarkable 0.44 inch in a Ruger Model 77R. continues to ride the crest of the 6mm-caliber wave, the tried-and-true 6mm Rem. It is based on the previous 22 Nosler and has two features to make it compatible with AR-type rifles: a slightly rebated rim that is the same diameter as the .223 Remington and an overall cartridge length set at 2.26 inches, the same as other AR rounds. It was the wildcatters who brought it back to life by fiddling with a couple of popular designs. Ballistic coefficients are about equal, with a slight edge going to the 6mm 108 ELD . V-MAX Item No. Available in different sizes and red dot ready, it'll fit your needs, whatever they are. Dave Bahde Dr. WT? What does all this mean? In most woods that I was hunting in at that time, I couldn't . Not only did the rifle have a nice checkered American walnut stock, but also the light barrel was a handy 22 inches long. You will not find better quality and consistency when it comes to Lapua. Salmon River Solutions: Ulra-Light Brakes, Rails, and more, Area 419 Orange Vise Maintenance and Barrel Change Jaw Kit, Hands-On: Phodera Armory Hill Country 30 Caliber Suppressor, Rifle Reloading Basics Pt1: Safety and Brass Tumbling, NEW Dies from Area 419: M-Series Sizer (In-Depth), Perfect Primer Seating with Frankford Arsenal, RCBS Lightweight Partner Press Unboxing and Overview, TESTED: Double Alpha Academy Turbo Case Feeder, Unsolved: 44 Magnum Over-Pressure Mystery, RCBS Lock-Out Die Part II: Setup and Maintenance, RCBS Lock-Out Die Part I: Theory of Operation, Reloading Safety: Powder Check Systems Overview. I had a 6mm Norma BR built on a Remington 700 and I could not get it to feed from the magazine. The pair developed the .22 PPC in 1975, and the 6mm PPC followed in 1987. The ballistics look great. The 6mm AR needs to be sized down from Grendel brass, or fire-formed from 6PPC brass. The newest 6mm cartridge is the 6mm ARC, which Hornady just introduced. Full Member. for a Remington 40XB Rifle in 6m/m Remington Bench Rest back in 1985 or so. That flattens trajectories somewhat and applies a bit more punch to the game. Hornady Precision Hunter 6mm ARC 103 Grain Jacketed Soft Point Centerfire Rifle Ammunition, 20, SBT (Save 10%) $2.15/Round. Wait a minute. The release of the new Hornady 6mm ARC (Advanced Rifle Cartridge) supports the perception that gun and ammo makers are engaged in a race to the bottom. Powered by UBB.threads PHP Forum Software 7.7.5. Then the AR-15 platform exploded and the game changed some more. Most Popular. Five rounds for effect at 1100 ended the drill. remains a runaway hit to this day. Fred Huntington, founder of RCBS, developed a then-new 6mm cartridge by necking down the .257 Roberts case. [5] Should I consider another upper? Would love to get this thing shooting consistently under .5 with enough speed to reliably ring steel at 1000. The 6mm ARC is a brand new cartridge that Hornady designed to fit into a standard AR-15. Copyright 2020 SHWAT | All Right Reserved. It accepts all the same components as the Grendel, including the magazine and bolt, so all you need is a 6mm-specific barrel. An eighteen-inch barrel, maybe even a. 6.5 Grendel The 6mm ARC delivers comparable performance from a wider assortment of bullets, making it a more versatile choice. The current reincarnation of this round is the 6mm BR Norma, with essentially the same case dimensions. If you have any doubt how well Hornady does this look no further than the 6.5 Creedmoor. Poll: Where are you finding reloading primers and powder? 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]. pavementends Junior Member. Consistency remained about the same with 2 or 3 out of five the norm. You are using an out of date browser. Short, relatively fat cartridges concentrate powder near the ignition flame for an even, consistent burn with a tendency to improve muzzle velocity consistency. CMMG MK47 Banshee Review 25 Hogs Plus Coyotes Helped the Research, Top 5 Braced Pistols for Hog Hunting in 2020, https://www.youtube.com/watch?v=ykTfyrMiXps, Remington at Gunsite! That was the era of increasing muzzle velocity. This increased size means the 243 has a case capacity of 53-54.8 gr H2O. The new Mossberg rifles chambered for the new 6mm ARC should give similar results with even less recoil -- not that the old 243 Win. The second set of data is loaded to a MAP of 62,000 psi, which is stated to be for use with bolt action guns such as the CZ 527. Interestingly enough, my history with 6mm rounds began with the 6mm Remington. What explains that? The only difference is the Proof Research 18 1-7.5 twist barrel, 6.5 Grendel bolt, and E-Lander magazines. The problem is that Hornady, which developed the 6 mm ARC, made a slight alteration to the case length so that it would be compatible with very long 6 mm bullets that have a high BC. 6mm ARC vs 6.5 Grendel. You may know one or two more. Notify me via e-mail if anyone answers my comment. The .243 Win. Some tactics never die, they just get regenerated. Its 26-inch barrel made the rifle a bit heavy for toting over hill and dale, plus the 1:12-inch twist limited bullet weights to 90 grains or lighter. Did not hit as hard but it was no slouch, anything it hit would notice for sure. Ever since the 6mm ARC came out I've been stuck on the idea of building one as a bolt gun trainer, specifically on a Tikka action. 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. Modern Outfitters MC7, Proof Research 22 6CM, Bushnell Elite Tactical XRS 4.5-30, Hornady 108 grain ELDM. It is chambered in many very good and some very inexpensive rifles, which have helped make it the hit that it is. The rifles Barrett supplied for the DoD are top-notch, but they are just a modified REC-7 DI. But I wanted to get some real-world results with my new, would produce approximately 2,754 FPS in a 24 bolt-action rifle, Dont miss out on Ultimate Reloader updates, make. Given all the focus on the Armys NGSW (Next Generation Squad Weapon) program when the Hornady 6mm ARC was introduced it was pretty easy to mix the two up. and 6mm Rem., but it pushes them a little faster. It hits way above its weight class. The .244 Rem. for decades and have experienced no odd problems with it. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. What does the 6 ARC do that the 6 BR REM hasn't been doing for over 50 years? In simple terms, its essentially a 6mm Grendel with the Creedmoor treatment, alterations to the shoulder and casing for better feeding, more consistency, and ease of mass production. In between: Everything performed swimmingly between 100-400 meters as they should, once again the ZEV shines here with no recoil and consistent accuracy, almost boringly easy to get hits. Facebook; Twitter; Pinterest; Related Articles. Editors Note: Looking for a deeper dive on the 6.5 Grendel vs. 6mm ARC? You never know for sure, but its not a failure out of the box like so many others. I did a ladder test one time at 300 meters on an electronic target, the Norwegian ones that have verified accuracy. Accuracy was up to par, and shooters took to the rifle-cartridge combo like a duck, well, you know. Straight-wall rounds like Winchesters little 350 Legend may be the only centerfire rifle cartridges legal for deer hunting in some states, so of course theyre going to be popular. Save my name, email, and website in this browser for the next time I comment. I was lucky enough to get my hands on one of the first CMMG Endeavor 300 6mm ARC AR-15 Rifles, and it has been awesome to shoot! The latest, sleekest, high B.C. The faster a bullet leaves the barrel, the farther it flies before hitting the ground, the less it deflects in crosswinds, and the more energy it carries when impacting the target. 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. Its case is bigger and its report louder, but it is deadly effective in the field. 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. 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 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.
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