Hornady releases 6mm ARC

[Winny94]

6 Grendel finally standardized. Cant wait until redding, forster & lapua jump on board

https://www.brownells.com/guntech/6mm-arc/detail.htm?lid=18076

 

[johnnyi]

6 Grendel finally standardized. Cant wait until redding, forster & lapua jump on board

https://www.brownells.com/guntech/6mm-arc/detail.htm?lid=18076

http://www.6mmar.com/

I believe it has already been done. I believe they have both improved and standard dies, loads, etc on the website above. He has a video on that link making the brass with his redding dies.

Here is the improved vs standard link.

http://www.6mmar.com/6mmAR_Turbo_40_Improved.php

 

[newbieshooter]

references from years past:

http://bulletin.accurateshooter.com/2010/02/young-champion-relies-on-tack-driving-6mmar-upper/

http://bulletin.accurateshooter.com/2009/11/grendel-based-6mmar-cartridge-for-high-power/

http://bulletin.accurateshooter.com/2008/04/6mmar-varminter-field-test/

http://bulletin.accurateshooter.com/2008/03/6mmar-case-forming-video/

 

[Tommie]

True. But now that Hornady is putting their marketing muscle behind the cartridge, its chances for long-term viability increase markedly.

 

[308 5R]

6.5 Grendel from .220 Russian...
6 PPC from .220 Russian...
6mm ARC from 6.5 Grendel...

 

[Dusty Stevens]

With hornady’s marketing machine behind it youll think its the next creedmoor. Hope the grendel royalty debacle is over that was pretty stupid. This is a good thing because we will have more easy choices on grendel boltface actions now

 

[TAJ45]

I'll be the curmudgeon = yawn and yawn again.

The only upside imo would be the eventual availability of hopefully strong, LC brass for those not wanting to pay premium $$ for 220 Rusky brass.

Why not an iteration of the 6BR? If 2800 is good, why not 2950 w those wgts? Not much taper which is beneficial for semi auto feeding not to mention .003 chamber clearance? And on and on......
Ill prob need to dust off the flame suit on this one.

 

[Bamban]

I'll be the curmudgeon = yawn and yawn again.

The only upside imo would be the eventual availability of hopefully strong, LC brass for those not wanting to pay premium $$ for 220 Rusky brass.

Why not an iteration of the 6BR? If 2800 is good, why not 2950 w those wgts? Not much taper which is beneficial for semi auto feeding not to mention .003 chamber clearance? And on and on......
Ill prob need to dust off the flame suit on this one.

Boltface

 

[TAJ45]

Boltface

If so, what diff does .032 make?
I'm asking honestly as ive never gotten into the ARs.

 

[Bill Norris]

If this thing is as accurate as Robert Whitley's 6mmAR no doubt about it, it'll be a keeper. And it functioned flawlessly in the upper he built me years ago. Don't know why I sold it to be honest.

 

[Bamban]

If so, what diff does .032 make?
I'm asking honestly as ive never gotten into the ARs.

There are a few manufacturers in the past who made AR15 .473 bolt face who no longer offer them. Personally if I were to run a .473 bolt face it will be in a 308 AR platform. I know some people who sheared off some lugs on AR15 .473 boltface.


Here is an old thread on the subject.

.473 AR-15 bolt ? | Shooters' Forum
http://forum.accurateshooter.com/threads/473-ar-15-bolt.3864139/

 

[johara1]

It is not a .473 bolt face..... it is a PPC. bolt face..... jim

 

[riflewoman]

The 6mm ARC is not interchangeable with the 6mm AR or the 6mm Grendel. The headspace is different.

 

[rsbhunter]

True, I am waiting on a243LBC barrel, (6AR,etc) and it uses a different bolt head depth....but are very close on ballistics....wish Hornady had copied the case dimensions for case capacity...but it will open up a new capability for the ar platform...rsbhunter

 

[RustyPin]

The 6mm ARC is an improved 6mm PPC, it's not the Grendel Brass.

 

[FrankG]

Yes there are a lot of similar variations of this round out there. Has been for quite sometime.

Now though you have a standardized cartridge. Brass and ammo will be readily available. This will be a plus for the guys that don't reload and or for the guy that wants to shoot box ammo more often then loading ammo.

Also with Hornady making it a standard....places like Lapua, Norma, Federal Cartridge etc... might get on board down the road and make brass and ammo as well.

Brady here in the shop built a couple of uppers just a couple of months ago. 24" barrel gas gun for across the course shooting and 108gr bullets are coming out at 2885fps avg. muzzle velocity and shoot nice small groups to boot!

Later, Frank
Bartlein Barrels

 

[Pawnee Bill]

6.5 Grendel from .220 Russian...
6 PPC from .220 Russian...
6mm ARC from 6.5 Grendel...

I haven't figured that part out either. A rose by any other name.... I believe it is called Marketing.

 

[WyleWD]

The 6mm ARC is an improved 6mm PPC, it's not the Grendel Brass.

I re-read Brownell's introduction of the 6mm ARC. They stated that it was necked down 6.5 Grendel. WD

https://www.brownells.com/guntech/6mm-arc/detail.htm?lid=18076

 

[El Matador]

Found this on the Guns and Ammo website:

The 6mm ARC is based on the 6.5 Grendel. Hornady started by necking down the cartridge to 6mm and then pulled the shoulder back closer to the case head .030-inch. Engineers also shortened the case to make the cartridge friendly to long low-drag bullets that have high ballistic coefficients. The 6mm ARC was designed around optimal use with a 108-grain bullet.

 

[RustyPin]

Found this on the Guns and Ammo website:

220 Russian - 1.524, 220PPC - 1.515, 6.5 Grendel 1.515 inches, yet the ARC is listed as 1.49 - 1.51 inches. I stand corrected, apparently they started in Russia and ended up in Nevada where there must be a Brass shortage. We can give credit for this new Cartridge to: Arne Brennan, Bill Alexander and Janne Pohjoispää. They must work for Hornady. I personally blame the BLM for locking up and filling in all the Mine's in Nevada! Dang those Pesky Federales! Where is Humphrey Bogart when you need him?