6mm ARC Post Launch Discussion
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- เผยแพร่เมื่อ 22 มิ.ย. 2020
- A sit down with some of the Hornady "gooroos" behind the development of the 6mm ARC! This is more long form then usual so let us know if you like this conversational style of video. Also, comment below if you would like to hear more about a certain topic from us! Jump ahead to the 9:00 minute mark to skip the intro and dive into the discussion.
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I think you guys actually low key one-upped most every other alternate AR15 cartridge. I would not compare it to a 300 BLK because that was specifically made for short barrels, close ranges, and subsonics, but I think the ARC wins for any other AR15 purpose all things considered. Great stuff!
6.5 Grendel is a hunting cartridge with target capability. 6mmARC is a target cartridge with hunting capability.
@C-Bomb Not necessarily. I plan to use 6mm ARC for varmint and predator hunting.
Mostly coyotes but if I encounter a mountain lion I want to drop it at long range.
6arc can do PRS I mean competitive shooting too. Gas guns
Well said.
Match applications 6mm is better. Unimpeded path into paper, no problem.
Military applications 6.5mm is much better. That 6.5 hits a twig or branch, it will keep on trucking.
@@norman_sage2528 negative.
I grew up on a 6mm Remington Mowhawk and as a adult the 243. I have 4 6.5 Grendels and 1 AR10 in 243 18'' bsf barrel with a 1:8 twist. I have a BSF 20'' 6 ARC ordered. I'm a fan!
I really appreciate the honest conversation here guys. Saying people don’t have to buy the ARC and they can continue shooting their own cartridge is what most people are missing. I really like my ARC and it does meet advertised velocity with consistent impacts to 800 yards.
What barrel length are you running? I'm looking to build an AR and can't decide between 16" and 18".
I've found running an 18" barrel, in an AR-15, with a 3-18x scope, and the vortex impact 4000, that this is the best hunting gun I've owned. Super accurate, super efficient, and ultra low recoil.
Thanks guys very much for these videos. I'm new to the ar world and have stepped into handholding. I believe this round will keep me busy for a while just like our valkyrie has. I'll be getting a 6arc with a 20in and will be looking forward to the ammo I can kick out. I have few 556/ 223s and love them. Can't wait till I get my hands on one and be able to enjoy it myself. Thanks again for all the info. Mathe next video will have some paper testing in real time. Keep safe gentlemen and I'll be calling the techs and bothering them soon. Keep safe and keep doing what yall enjoy.
I'd like to see an in depth ballistic comparison between this and the 6.5 Grendel from hunting ranges all the way out to 1,000+ yards for target shooting showing where the 6mmARC starts to take the advantage.
In general for over 1000 yards for a target cartridge the 6 ARC will win 95% of the time. With the 6 ARC you can hit (very) extended ranges whereas other cartridges like the Grendel can only go that far by using specialty designed solid copper bullets that currently run $1.25 per projectile (not loaded ammo) for the cheap stuff (that may or may not feed in a magazine). 1,400 to 1,600 are reasonable expectations for the 6ARC (with bullets that cost just over .30 cents each), and of course depending on configuration and exact bullet choice. Say for example if you use Sierra's 110 grain bullet and you only get 2600 fps out of it, the transition from super to subsonic happens between 1,400 and 1,500 yards. If you can eek out 2,700 fps with that bullet you have a potential 1600 yard gun.
For me I am not hunting or doing anything like that. My primary purpose is exactly for long distances and to have an affordable way to scratch that itch. A cost effective way to shoot more ELR is my primary objective. I can get into that game for basically the cost of an upper (and of course the optic). I get a lot more bang for a lot less buck.
to add to what Tyler is saying, Grendel, nor arc, aren't viable to hunt that far out. Neither is 308, lots of cartridges. long barrel hunting limit is likely around 500-600 yards. Carbine limit is around 400. But for most people that's way more than you need.
Holy Smokes. I didn’t know it could get out to those ranges. Do you have any idea how far one could shoot with a 16” barrel rifle?
@@Glove513 With the right bullet selection you can get to about 1,400 yards. With factory ammo probably 1,300. That's out of a 16" barrel.
Tyler That is crazy. Thanks for the response. Makes me wonder how far a 12” could realistically reach. Or, for that matter, an 8.1” in an AK-74U.
I was ready to start building a 6.5 Grendel but I decided to wait and adopt the 6 ARC instead. Waiting on more barrel options along with dies and load info. I'm excited to see what this can do.
I think you will be waiting a long while.
you make a great point around 18:00 on 243 win and weight. Lower weight and higher velocity means more energy at closer range, but it's not a cartridge designed for close ranges, and terminal ballistics change over wide speed envelopes. Better to have similarities in impact velocity over a wide range of distances.
I am already collecting parts to build an new ar and I am going to try it out!
Im already convinced, im building a 6 Arc. Been waiting to build a 6 ARC since the beggining of the year when it was leaked. I just want an ETA for when ammo will hit the shelves!!! Also... cmon barrel manufacturers! JP and Criterion, im looking at you! Im not interested in the 2 or 3 manufacturers that are currently making the barrels, and Proof isnt gunna be sending them out till November December!
SuperSneakySniper I'm waiting on Criterion as well... 18" hybrid or SS.
Be nice to have some dies, brass, and load data available. Everything is on backorder as far as I can tell.
You guys with the 6mm arc have now made the AR platform like the 03 after WWII.
I'm sold of the 6ARC. If ibwasnt for this CV I would of made the switch to 6ARC only .
Once everything gets said and done . I'm gonna build 13.9" for HD , Recce , deer , Hogs and shooting out to 600 yards. Then I'm gonna do either 18" or 20" as a DM or CSASS Rifle . I'm more than likely only gonna be using Black 105g BTHP and 103g ELDX . So far my 16" shoots the Black better than the 108g ELDM. I'm hoping I can pick up 10 or 20 boxes of the 103g ELDX once they cone out . In the mean time I had buddy load me up some 100g Partitions for 2021 Deer and Hogs.
Thanks guys for making this awesome Cartridge. I've been super impressed with it .
We need more 6mm Arc options and availability 😁 😇🙏🏻“keep the round Hot” 🔥
I’ve been experimenting with light load 80 and 85 grainers with good success in grouping and terminal performance. 🧐💫
Thanks Team Hornady
Im notifying you guys. At 5:48 automated captioning said "im mass shooter-" im sure that's not what you said, you guys can correct the captioning through youtube studio, please do it. (i use those captioning cause im deaf)
I just confirmed that, the captioning says mass. You guys need to fix that.
I clearly hear “Match shooter”
Great video and discussion. I wish you had talked more about a 16” barrel which is what most ARs have
Here is a video where we talk about barrel length: th-cam.com/video/0COzGgLCirA/w-d-xo.html
We also have this chart: press.hornady.com/assets/pcthumbs/photos/1410997173-6mm-ARC---Velocity-vs-Barrel-Length-infographic.jpg
there should be more videos like this from the manufacturer. i learned so much and i was worried about compatibility issues between the mags and bcg. also if a standard lower was going to work or not.
I had a weak extractor on my 6.5G that was extracting slowly and leading to FTF problems that I originally thought were magazine related. One day the extractor broke, and I replaced it with a JP industries enhanced extractor. I haven't had a single FTF since. The Elander feedlips got absolutely mangled in some FTF instances. I never bent them back, but they work with the new extractor! If you're having rounds nosedive or pitch up, take slow motion vids of your ejection, and you may find that your extractor is ejecting too slow (this is how I realized it wasn't the mag's fault).
I'm just interested on when the cheap ammo is coming out.
Just gotta hope wolf thinks its profitable to make it in steel case. they are setup for 6.5grendel so it won't be a big jump, if they think it will be popular
Learn to reload. The math is compelling.
Don't hold your breath.
@@petersouthernboy6327 I don't have the time for that.
@@fredeb67 if I was, I'd be dead by now.
One of the main reasons we have the 6.5 PRC is because there was a great wildcat cartridge called the 6.5x284. There's very little support for 6.5x284 because there's a version from Lapua, Norma, and winchester, and none of them were saami certified. I'm glad that Hornady went through the process to get the 6mm Grendel saami certified as the 6 ARC. I wish they would have done it a few years ago before I bought a 6 Predator barrel. LOL I think the 6 ARC would be a huge upgrade for the military.
I was an early adopter of the Valkyrie, it seem to have a few hiccups with the 90 grain SMK and the 1 in 7 twist barrel. I am very interested in the 6mm as I carry an AR for work. I doubt the military and law enforcement will see this in wide use anytime soon, but it still is something I want to experiment with. Hopeful one day the 6mm will replace the .223 for those of us that rely on the AR in our job.
It certainly looks like a big improvement over the .223/5.56 round.
Get Wolf to make this round in steel case and I'll build an upper to go with my 6.5G!
im hoping for the same lol maybe with like a 80-90gn bullet
Given that the 6.5 Grendel can't hack 140's, and the 140 class bullets are what makes the 6.5's shine, I've figured that 6mm was the sweet spot for the AR15. Not wanting to deal with supply issues has kept me from trying one of the existing wildcats (and some weren't optimized for 100+ gr target bullets anyways).
The 6mm ARC has been optimized for the best available bullets, and won't have the wildcat hassles, so I think it's worth a go. I would've preferred it to be 6.8 SPC based, but that's not a deal breaker.
I am not the only person to modify an AR15, Ammunition Storage Components (ASC), 20 round mag chambered for a 7.62x39, to accept 20 rounds of 6.5 Grendel.
It's really nice to be able to load an entire 20 round box of factory ammo in to one magazine.
would love to hear a video on Why i should choose the.... 6 ARC vs 6.5CM vs 6.5PRC vs 6CM and all that are comparable.
i think that would be a fantastic video
VS. 224 Valkyrie....Why switch? Why not switch? A big question from the standpoint of an 07FFL who sank a bunch of money into the 224V for barrels and builds; only to see it flop with lackluster reception at first after the ammo debacles. From a ballistics standpoint I can definitely see the advantage when running numbers against data I've collected in my own testing of the 224V across multiple barrels and loads. To be frank, I was extremely excited for the 224V, but at the same time was thinking in the back of my head, "...why the heck didn't Hornady or someone do this with a 6mm?"
*facepalm in 224V* Should have waited I guess; very excited to get hands-on and do some testing!
they have a video on this specifically. IMHO, the 6mm is just better. It can carry more weight easier, and still hit the ranges required. And the valk wasn't really viable for hunting, the Grendel is a great hunter, but is a bit slow. The 6 splits the difference and has most of the benefits of both for most game and for target shooting. It trails the Grendel on larger medium game.
I am very interested in the 6mm ARC.
A bolt gun with a 24 or a 26 inch bb. I'm sold
Why not a 6 BR, 6 Dasher or 6GT? They are all better 6mm's out of a bolt action. Unless you just want to run a micro/mini action. My 6GT pushes 105s at 2960 from a 26" barrel.
This cartridge is specifically made to fit into an ar-15 size magazine, if you want it for both an ar-15 and a bolt action I can see that but using it strictly for a bolt action when there are better choices when you don't have the constraints of the short mag length of an ar-15 just doesn't make sense.
Question for Preston: Will there be go / no go gauges for head spacing the bolt on a barrel? I haven't see those mentioned anywhere. I purchased a barrel from CMMG, and will need to head space it to the bolt I purchased from Brownells. Also, there is no ETA on the die sets yet? Will there be a Hornady or L.E. Wilson case gauge for ARC? Thanks.
go/no go gauges would come from the folks that make reamers. I'm betting there will be cartridge gauges out in good time.
Okay all I want to know is this ... when is the 108 gr ELD match Factory loaded ammo going to be hitting the shelves?
Big box stores and gun stores? No idea, probably if the demand is there. We just got a case in at our shop for testing with barrels.
Using the Hornady 4DOF APP and some speeds provided by Gavin Tube's review of CMMG 20" AR (2860fps using 95 SMK and TAC) compared to the 2650fps of ARC's 108 ELDm. It looks like the 95SMK is 2 mils flatter at 1000 and beats it by a half mil in wind drift. Hornady released an 88 gr for the Valkyrie and the 123 gr for the Grendel. Any chance there will be a lighter projectile in the 95 grain range with a high BC specific for the ARC?
If I could use less powder than with my 6mm Remington and keep the same performance...as the data suggests...I am thinking a CZ or Remington M700 bolt rifle is in my future. I am not a fan of recoil when it is not necessary. the .243 Win and 6mm Rem are great for that. I HOPE you can get some traction with this round, it sounds like a incremental increase in performance from what we've had.
Ok, enough talk. Get back in that factory and get some on the shelves. Can only find it sporadically online at retailers that want a lot of money for them. And I dont want to pay the shipping. Need it in the store ASAP!
Thanks for the information, but if this cartridge is going to be successful we need actual range reviews with data from several sources, 224 left a bad taste.
Ok, staff. Ballistic tables, comparisons, reload data, etc. Without this, your rollout is a nonstarter.
Hornady has a very basic ballistic calculator on their website but if you're not an experienced enough shooter to generate your own exterior ballistics data then you're just a beginner so chill the fuck out and learn. They can't generate generic ballistic carts anyway atmospherics are going to be different and wildly vary the data but you'd know that if you had some experience.
I think its going to be great for feral hogs.
Some people cannot get past muzzle velocity. You can explain that, due to bullet aerodynamics, one bullet that starts at 3000 fps might be slower at 200 yards than another bullet that starts at 2750 fps.
i know this was just released, but i'm interested in how it will work through a 12" barrel and silencer, as well as the price and capability of practice/range ammo, and subsonic. according to a chart i saw from you guys, you can conceivably go much shorter on the barrel, too. very very interesting!
I'm excited about this cartridge but extremely disappointed in the release. I wish they would have had more components available at launch, (i.e. Ammunition, Brass, Load Data, dies, Barrels, etc.). I realize they wanted to see what the market demand would be, but on day one, EVERYTHING is on Back order??????
Yes ramp up manufacturing!!!!
We've been debating whether this cartridge requires longer than normal gas tubes (gas port locations) relative to barrel length than, say, the 6.5 Grendel. What does Hornady say?
Texas Plinking just released his video with a CMMG 20” 6mm ARC. He said both the 20” and 16” versions would have rifle length gas systems.
6arc varmint express has a good ring to it!!!🤔😂
Can you give some guidance on these mini actions for a bolt gun. I would like to build one with the 24
“ barrel I have already ordered the chamber reamer and have a gas gun I am converting over to the 6 mm arc. There I am considering with a 16” or 18” barrel length. Certainly looking forward to loading data and ballistic data from you. I think this will be a super winner.
CZ has a smaller than short action and Howa does the Mini Action. Looks like you would be swapping barrels with current gun for now, and barrels are cheap in the grand scheme of things.
Love these round table conversations of a new cartridge. I'm not a 6mm fan , , but , , this one has my full attention. Will be putting one together in an AR platform as soon as components are at a more reasonable price, along with reloading supplies and data.
Americans are enamored with the 3000 fps mark. That was because of the Savage Firearm folks and the 250/3000 cartridge, (1915 with an 87 grain bullet). Today, it still is a non-necessity in the real world. So far, it seems that the true hunting / long range round is between 2500 to 2800 fps with the correct components to make it happen more folks owned and utilized a chronograph, their bragging rights would not be as prevalent, (my opinion). Makes me wonder why the Winchester 30-30 is still around, (grin). Keeps harvesting deer, even today, ( 1895 in the Winchester 1894). Don't see a 3000 fps with this round.
Other than that, I'll be an upcoming customer of this cartridge. Be more than happy to buy some Hornady dies and start digging in to the reloading process, and 'my' development of this cartridge.
Joel
Wanted a 6mm AR since the 1970s:)
I'm ready for a Critical Defense offering! I have fallen in love with my 18", all I have to do is swap optics and I go from a 6-24x45mm FFP for as long a shot as I want to take to bedroom protection gun with my holographic, now I want something I can use in my house with confidence in controlled penetration
Will there be a powder so we can duplicate loads?
32:34 no, the 6 creed has made the 243 win obsolete. If 243 chambered rifles were offered today in a 7 twist and 35 degree shoulder, the discussion might be different.
This is really cool to see you answering real, relevant questions. This presentation was excellent. I do have a thought- Grendel is popular also because Wolf steel case is cheap. Will Hornady produce steel match ammo to compete?
what magazine to use for the 6arc for the ar15
You (Hornady) said in previous videos that the 6mm ARC can handle 55 to 100+ bullets. How true is it, I notice Hornady is only selling the ammo loaded with 103 to 108 gr bullets. I very curious if Hornady will load 75 to 95 gr bullets.
That will be more of a financial question for the ammo manufacturers rather than a technical one. If a ton of people want to shoot screaming fast loads at gophers then manufacturers will make ammo for that purpose. To me the sweet spot for the ARC is that the longer higher BC bullets extend the range of the cartridge far beyond what a regular AR is capable of.
I think you can probably expect 58gr, 75gr and/or 87gr Vmax loads in the future.
Johnnys reloading bench did and awesome video with different grain weights and powders I believe he started at with a 68 gr vmax.
Never had any problems with my 6.5 grendel mags
I love when people in marketing calls themselves The creative ones.......
What is your recommendation for twist rate in 20” barrels?
7.5
Someone please make improved 25-30rd magazines for this/6.5g
This round needs a Vmax option very good coyote cartridge
Been waiting over a year for brass...
Ive got 3 grendels a 12" 16" and 18" think ima pull the 16" barrel and replace with the 18" arc barrel. And as far as the 6.5 grendel mags i like the 6.8 spc mags myself asc tend to be the best but the 6.5 grendel asc mags work well too i just had better luck with the 6.8 mags myself. I just wish someone would make a polymer mag for the grendel and arc btw thats the 15rd mags and the 25rd mags im using.
How does this round compare to 6 mm Grendel?
I would love to see this type of rollout for the 8.6... when's that coming? In a few months? (please oh please oh please oh please... been waiting 2 years and am working on an AR308 build just for this project).
Forgot all about that 8.6mm concept! Thanks for the reminder. Would be great to see it.
@@michaelsurratt673 it was supposed to come out this year's shotshow. SAAMI approval and testing plus covid seems to be putting it all on delay.
Personally I wonder if they're having trouble standardizing a chamber. They're long loading .338 bullets so you can use the longest heaviest high BC subs, trouble is, if you long load the 185s and 200s thar already exists, the ogive is so far out that it won't hit the lands in the same place as a long high BC sub. That means either the subs have to jump or the supers can't fit.
And that's because the appeal of the round is that high BC 338 bullets are common, plentiful and effective... but if the ogive has dramatically different shapes from length to length (Federal bullets vs Lapua bullets) and since this is supposed to be accurate with subs at long ranges (600 BC 300 gr bullets hold onto energy REALLY well at long ranges) but that potential for great accuracy is dusted if the chamber us meant for a blunder 338 Federal bullet shape.
All this speculative ramble is to say that it's possible that 2 things are holding all this up: perfecting an accurate chamber that works for subs and supers, and Hornady might be working on a simple cheap versatile polymer tip 185 or 200 grain LONG BC 338 bullet... think a 120 gr 6.5mm lapua scenar profile but scaled up. But that means the reload value of the cartridge might go down if you can't use 338 Fed bullets loaded long.
Just thinking out loud.
Can’t keep up with already existing ammo demand on the shelves across the country.....releases a new cartridge anyway. Way to go guys!
The cartridge was developed for a DOD contract
How many rounds will be able to fit in an AR style magazine ?? will it be a 30 round capacity ?
For a 30 rd 5.56 size mag around 24 should fit, hope someone manufactures better 20+ rd mags for the 6mm/6.5 in the future
I want an rpd in 6mm arc
I have shot 140 speer hot cores from my grendel they are really short for 140 grain bullets.
At roughly what distance does the 6 ARC overtake the Grendel for energy? When/where does the 6 ARC outshine the 6.5 Grendel?
Depends on the bullet selection but in general I would say between 800 and 1000 yards depending on a host of factors and if you truly did a 'fair' comparison. IE Using the optimal bullet weights and barrel lengths for each.
@@tyler6147 800 yards? What? 6mmARC and 6.5 Grendel come out the muzzle at near identical energy levels. However with it's higher BC 6mmARC begins trialing away from 6.5 Grendel immediately.
@@gsxr1189 I haven't ran every available combination, but in general for practical application the farther you go the more stark the difference will be. At around 500 yards the hold over/dial up is about the same...but that is when it starts to separate. Again though, as they say in the video 'it depends on what your application is'. And as I always say when people start caliber arguments, "I wouldn't want to get shot with either one".
When you guys released the 6.5 creedmoor it was a large primer round then after a couple of years you guys started making 6.5 creedmoor with small primer! Is that the plan with the 6 arc start with the small primer then in a couple years release a large primer?
I would have to answer for them and say no. When you ever can you want to be able to use a small rifle primer. When using a small primer you have more brass support in the highest pressure area if the cartridge. Plus for reloading you keep primer pocket uniformity for longer. Srp is want you want a large would serve zero advantages
Matthew Baker ok thanks for the info!!
What is the saami spec twist rate. I have seen 1:8 and 1:7.5?
SAAMI spec is 7.5"
Are you going to be releasing the velocity data that you have gathered in the barrel length test? I would love to get a copy in an email or screen shot if someone could post it. I am considering a 12" for a SBR truck gun. But I'm very interested in the data you collected from 24" down to 12"
press.hornady.com/assets/pcthumbs/photos/1410997173-6mm-ARC---Velocity-vs-Barrel-Length-infographic.jpg
@@hornady outstanding! Thank you!
@@hornady this link does not work
HORNADY seems like a big enough CARTRIDGE/BULLET MAKER TO make theyre own guns just as goos as theyre bullets
They are not a gun manufacturer though, they are doing well at what they already do, right now there are a lot of ar-platform gun manufacturers so competition is very high that is why prices are very reasonable overall.
Develop a cartridge optimized for 16 and 14.5 inch barrels to replace the 5.56
Its a damn nice gun..Ammo & Ammo Price will be a problem for a while
Well my 6arc is all done how about maybe working with a manufacturer for some reliable magazines got to have a way to feed the ammo that Hornaday is so proud of!!!!
I want to know all the ballistics and velocities I heard are they from a bolt rifle or a gas rifle.
Oh I am building a gas gun as we speed on the 6arc with a 22 “ bbl
What's the optimal twist rate for an 18" barrel
7.5
8
It would be nice if you could actually buy the parts and components. Like someone else already said, everything is back ordered.
Is this new cartridge all hype or is it really about to lead the way and become a good all around new cartridge/bullet the 6.5 grendal has been around for a while why didnt that little round not become so easy to buy or get hope the 6 arc will be not so costly like the 223/5.56
For the first 7 or 8 years of the life of the Grendel it was a proprietary round where Alexander Arms held all the rights to it. Anyone wanting to make anything had to go to AA to see if they could work out a deal. On the other hand the ARC is coming straight out of the gate with SAAMI specs and a host of industry support primarily because they approached it with a 'standardization' mindset.
Check out IraqVeteran8888's channel. They goofed around with a 6.5 Grendel and then 224 Valkyrie then discouraged moved on to the 6mm AR wildcat and they determined that 6mm is the "happy spot" for the AR platform. I concur. The 6mm bullet size lets the AR size platform achieve everything it is capable of.
Long Barrel life in a lighter platform is awesome. Recoilless long range overwatch rifle.
the TONE of this video is like being at a Funeral, NO energy, no excitment, like the are sorry about coming out with a product
What is the chamber pressure of the 6MM ARC ?
ZX Rider 52,000 in factory ammo and “load data”
Yep 52,000 which is NATO 5.56 spec
When will we see reloading data?
Would it be possible for Hornady to create a new brand or line of products to compete against 🐺 Wolf? 2:40 Magazine reliability
I doubt it since Russia has cheaper labor costs and less regulation that adds to the manufacturing costs. Hornady already has some lower cost ammo but it's still far higher than Wolf. I think that's as cheap as it will get though I also think it's better quality ammo too.
It's been over 2 1/2 years since ARC came out. There is Zero availablity of brass for reloaders. Still. Midway, midsouth, powder valley, grafs, Bruno's ect have no brass or Grindle brass to make any, and no backorders .
Good engineering, bad support. It's been out well over 2 years, and you still can't buy a piece of brass. My local gun shop says they have seen one box of loaded ammo. My 6MM ARC is in the back of the safe. Got sick of using Grendel brass to form to the ARC. Can't buy Grendel brass for the last year either. With no support it is dyeing a pretty quick death.
I agree with all that and then some. On the other hand, I have a need for a deer cartridge that can use a small rifle primer cuz I can find those.
what's the military potential of the 6mm ARC.....??? will it replace 5.56 within the US military...???
no, an article from the DOD said they have already concluded the test and said they were concerned about bolt strength.
I feel like you could have done better talking about how much less an AR15 platform weighs than the AR10 and how much less it cost to build a AR15 that does almost the same as a AR10.
Who needs a reason why it’s better or not? It’s a new gun and one can never have enough guns.
what the difference between 6mm arc and 6mm AR??
They tested a 6mmAR/243LBC/6mm Predator before they shortened the case .029" So the ARC is apx 50fps slower than the 6mmAR.
Just get the ammo out there and we’ll shoot the shit out of it. I’m too lazy to reload and I love long range target shooting. All jokes aside, I built a 6.5 Grendel and absolutely love it. Im ready for the 6mmArc rabbit hole. I love in Commiefornia but ironically I have lots of options in terms of ranges to shoot this caliber.
Dear haters, 6mmARC is here because SOCOM wanted it. They ordered AR-15s chambered in 6mmARC for the DMR role and Barrett delivered them two months ago. A SCAR-17 with 180 rounds of .308 weighs 12-17 pounds more than an M4 and apparently that’s a big deal in the mountains of Afghanistan. Hornady was smart enough to get the SAAMI approval and commercialize it.
Hornady completely missed the amount “initial interest” in the 6mm ARC. Brass and dies were sold out within 2 days! Very disappointing.
I'm sure the 10x increase of demand for all ammo products didn't help their 6mm arc output
100gr copper bullet?
That kind of projectile, if it existed in 6mm, would be extremely long and not compatible with any magazine.
I'll take a 24 inch ARC bolt gun please.
In that case don’t limit yourself with the AR magazine dimension restrictions - run 6GT or 6 Lapua or 6 Creedmoor
Good round BUT at 3:18 "guyses"!!! Come on man!
Maybe Hornady should make 103 and 108 gr bullets for the 6.5 grendel. Federal makes a 90gr with claims of 3000fps. Correct me if I'm wrong, but i would think a same weight bullet out of the grendel and the arc would be splitting hairs.
It would be massively different actually. A 103 and 108 grain in 6.5 would require a fatter (obviously) and shorter bullet and that would result in a much reduced BC. There ain't no such thing as a free lunch. The only way to get to the weights you are talking about would be to buy and shoot extremely expensive solid copper CNC machined bullets and even then achieving the goal would be really hard if not impossible to get a high BC with the parameters you mentioned.
6.5 Grendel can match either the velocity or almost match the BC of 6mmARC but it cannot do both simultaneously and that's what needs to happen in order to match the performance.
Short fat bullets have lousy BC’s tests why.
Reinvent the wheel yet again. Fix the 224 Valkyrie if you wanna do something
224 was a bad design terribly executed. Very limited high BC bullet selection and the rebated design on the case rims tore - meaning most cases couldn’t be reloaded
@@petersouthernboy6327 Sounds like you are referring to 22 nosler rather than the .224 Valkyrie which retains its rim dia relative to case head. Reason why .224 V requires a larger bolt face in an ar15 platform.
Need load data
Whats the biggest game can this take down..
small deer, speed goats.
Why is it better than 6.5 Grendel?
The guys get into that conversation in this video around the 20:30 mark. Here is another video that talks on that too - th-cam.com/video/os3x5Rg-BJw/w-d-xo.html
Slightly more energy at the muzzle (e=1/2*m*v^2-- velocity being squared gives more energy to lighter faster bullets) and it maintains it better (higher BC bullets).
Because it has a higher BC and more velocity. The weight of the projectile is already factored into the BC. Meaning that if you took a 123gr 6.5 Grendel and 108gr 6mmARC and for the sake of this example they had the same exact muzzle velocity and the exact same BC both would be moving the exact same velocities at 100, 200, 300, 400.....etc they would have identical velocities at every distance they would also have the exact same wind drift and drop at every range and go subsonic at the exact same distance because again bullet weight is already factored into BC as a part of the calculation that determines BC. Thus comparing a lighter bullet with more velocity which also has an equal or higher BC than a heavier bullet with less velocity the lighter bullet will be faster at every distance downrange the mass of the heavier will never allow to catch up in any way.
However 6mmARC has a slightly higher BC than 6.5 Grendel and it has 170 fps more velocity. What that means is that since 6mmARC is faster it spends less time traveling to target which means less time exposed to the wind and thus less wind drift and since it's travelling faster than 6.5 Grendel it will have less drop as well and with the extra speed it will give more supersonic range. The 6mmARC also has nearly identical muzzle energy as well but with the slightly higher BC it begin to slowly pull away from 6.5 Grendel in the energy department immediately and continue to so all the way downrange.
Because working out if the AR-15 form factor, the 6mm has better longer range ballistics
These guys really don't want to give the nod to 6.5g. They keep dancing around it. The 6ar? No ones making that comparison. Its a necked down grendel