30 Remington AR: New cartridge for the AR-15
Remington, and sibling Bushmaster, have announced a new cartridge designed for the AR-15. The 30 Remington AR is a .30 caliber cartridge the length of a .223, allowing it to be chambered in AR-15s rather than AR-10 style rifles.
John Snow has the details:
The big difference is in energy. The .30 RAR in this bullet weight has about 500 ft-lb. less of energy than the 165-gr. .308 at any distance. A substantial amount less and one that will certainly have an effect on game in the field—but how much of a difference we’ll just have to see once we start killing some deer with it.
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The R-15 is said to weight about 7.5 pounds, a full pound less than the R-25 in .308 Win.
More info @ Gun Shots
UPDATE: tammons @ ar15.com came up with this diagram of the case:
Short and stubby. It reminds me of the 7.62×39 as some have said in the comments. Oh and lets not forget the .30 Steve.
The consensus seems to be that it is a cut down .284 Winchester case, as is the .450 Bushmaster.
Yep looks like a short 284 case.
Good. I am glad somebody is doing this.Should be a great hunting round, but hopefully they will be slow twist for less pressure like 1:16 - 1:18 twist etc.
Its sort of a AR15 version of a fatter 30BR. The 30BR case is 1.51″ L, the 30 RAR is 1.53″L.
A 30 br with a 22-24″ barrel can push a 125 gr moly bullet to 3000 fps with 34.5gr of H4198. I had one for a while and they are nice.
I doubt they will be able to run it at 55-60k unless they use an oly wssm upper and bolt.
For benchrest nothing is going to beat a BIB 118 gr bullet in a slow twist barrel
This should be a really good round if they do it right.
Look at some of the groups on the link below.Here is a good read on the 30BR if interested
http://www.6mmbr.com/30BR.html
I had actually already designed something similar, a longer case version a while back just playing around.
I have a couple of 284 based bolt rifles, one straight the other 338/284 and its a good case. Very efficient case.I ran it through case designer and modified it to a 30 RAR and the case should hold right at 43-45 gr h2o.
Its a short stubby little bastard.
The case capacity is just slightly more than the 30 BR but you cant hang the bullets out like a bolt rifle.
UPDATE: The GunPundit (Murdoc) says it will uses .450 Bushmaster magazines. Presumably single stack.
A couple of comments have asked how it stack up against the 7.62×39mm and if there is any need for such a cartridge.
How does it compare to a 7.62×39?
The 7.62×39 FMJ 123 gr round leaves the barrel at 2,300 ft/s with 1480 ft/lbs of energy. The 123 gr .30 RAR will leave the barrel at 2800 ft/s and generate 2141 ft/lbs. That a 30% increase in muzzle energy. This is a significant increase in a hunting situation.
This splits the difference between a 7.62×39mm and a 7.62×51mm (.308 Win.).
If the round uses .308 projectiles there will be a very wide variety available to the hand loader. Much more than is available for the 7.62×39mm (.310 projectile).
UPDATE: The outdoor wire has more info and this photo:
Left: .30 RAR, middle: .223, right: .308 Win.
The new shell will be available in three initial loadings: AccuTip BT, Core-Lokt PSP and a UMC MC the company describes as the “practice ammunition” for the hunter or shooter who doesn’t want the hunting round characteristics - or price. The two hunting rounds are 125 grain bullets; the full-metal rounds are 123 grain. Pricing is currently listed at $35.99 for the AccuTip, $26.49 for the Core-Lokt, and $18.99 for the FMJ.
Like so many different cartridge in the AR15 platform, this hunting round not going anywhere. As far as I know the most used 30 cal in an AR15 is the 7.62×39. Which isn’t a lot if you compare it to AR15 that chamber 22lr or 9mm.
So, how does it compare with the 7.62×39, or for that matter, the 6.8mm, or other proposed alternatives to the 5.56 for the standard service weapon?
Acad, I don’t think they are going after the military market with this. I think they are aiming for the hunting market. My feeling is that bushmaster would have announced this if it was going to be marketed to the armed forces.
Absolutely targeting the hunting market. No mention at all was made of any military/LE application. Talk about no need for another intermediate AR round.
Unless they unveil a 30RAR rifle tomorrow (tactical day) it’s pretty clear this is for deer and such.
That doesn’t mean no one will try…just that it isn’t at all what it is intended for.
I would have rather seen them use resources to support a 6.8×45mm weapon. I can understand going after the Hunting market, but I would rather use my Remington 700 in 270 or my Winchester 30-30 to hunt with, not my AR platform.
Hmmm….wonder if there’s a possibility of heavier bullet loads such as the 220 and 240 grain projectiles used in the 300 Whisper. There’s a Whisper load that produces about 1500 fps with a 200 grain bullet; given the larger case capacity in the 30 RAR - much of which would be devoted to bullet space with a 220 grain bullet - something in the 1600-1800 fps range with a 220 might be pretty handy as a CQB rifle.
I suspect, however, this thing - in any loading - might have about the same market penetration as the Whisper, maybe 20-40% more because Remington has the ability to distribute it more widely than Jones did with the Whisper, and if Rem is behind it brass would be available to experiment with.
what about hunter benchrest class ???? if the shoulder is ackley iimproved then it should meet the —45,5 grains of water —(30-30 capacity) this seems like the nice big fat powder stack for precision that hunter is looking for,,, with less recoil and the 308 diameter bullet for punching big holes for score ……so any one thinking of calling pacific tool and die when the remington gets the brass out to us,,, could be like when the 308 winchester came out and mr page made the .243 out of it
The naming of the cartridge alone appears to be yet another nail in the coffin of one of the great all-time American hunting cartridges - The .30 Remington.
As for its hunting capabilities, remember that 150 gr. is about average for a .30 bullet. At 123 gr., its a little on the light side.
This means poorer ballistic coefficiency and sectional density.
The result? Power alone will proove “accurate enough” out to 100-150 yards, but lighter mass means the round is best suited for thinner skinned, lighter weight game not to exceed the “medium size” class.
Blacktail deer, which average around 90-120 lbs., should probably be considered the limit.
My question is…..who wants to go hunting with an assault rifle?
You’re gonna look like a joke, when you come outfitted with all those bells and whistles….and still go home empty handed.
i’d have to concur with john. if you get the full weight of remington behind it complete with rifles it’ll last a little better. in addition if you necked it down to the 6.5 class or so you’d be able to further reduce recoil but use a much better b/c and s/d class of bullet.
Jason,
Back in the 1970’s, a number of prominent gun writers decided to combine their acquired knowledge and do some research into which caliber was the best for all-around hunting and the conclusion was that 7mm was the winner.
In the weights one normally encouters using 7mm ammo, it was shown that (overall) the 7mm caliber yielded the highest ballistic coefficient for the most sectional density.
As the caliber got larger, ballistic coefficent was lost, although sectional density increased.
As the caliber got smaller, they noticed the opposite to be true.
I guess the Spanish had it right all along.
…and again, I ask - who wants to go hunting with an assault rifle?
260 RAR would be nice…