Comments on: Hornady Offers New 6mm ARC Cartridge for AR15 Platform

By: Pete

Pete — Sun, 30 Aug 2020 15:31:42 +0000

Hornady has been testing this cartridge for over 10 years.

For someone like myself, the ARC will make a good build project. Also, take note of manufacturers chambering rifles for this cartridge.

I’m not disputing this cartridge has similarities to other 6 mm’s, however the ARC has been released, and I for one want to build a rifle for it.

One more thing, the military see the impact increase over the 5.56 as being substantial enough for at least one spec warfare unit to adopt the cartridge.

I’m not disagreeing with any of you, we all have our opinions. This is just another cartridge to have fun with at my families plot of land.

By: Rick

Rick — Wed, 29 Jul 2020 05:30:55 +0000

One of the developers of the 6.5 Grendel had been shooting a 6PPC in NMC competition and worked with Dr. Palmisano and Alexander Arms to bring it to fruition. There was, of course, the matter Of the bolt thrust limitations of the AR-15 platform. The 6mm ARC shares the pressure limitation of the 6.5 Grendel. The Grendel never really got started because it was a proprietary cartridge and DoD was never going to pay the AA prices for ammo. (It later was filed with SAAMI which helped it in the civilian market, but its opportunity with DoD had come and gone.

There are almost always considerations to prevent or at least make chambering the wrong ammo more difficult when commercializing a cartridge.

Meaning no offense to the various people who used the 6.5 Grendel case as the parent case for various other cartridges, but they were all pretty obvious and other than trademarking names there wasn’t anything terribly patentable about them in my opinion. The same process happened with various versions and names of the .300x.221 and related cartridges based on the .221 case.

So Hornady developed something to fit the requirements of their DoD client. So far at least, it appears they did a better job than Federal did with the .224 Valkyrie. In the end, I think we will all benefit from this work.

Who knows DoD might even more broadly adopt the new cartridge if the undisclosed agency likes it in actual field use.

By: Mehul Kamdar

Mehul Kamdar — Thu, 18 Jun 2020 00:27:29 +0000

Mr Whitley needs to follow in Rick Jameson’s footsteps and take Hornady on like Mr Jameson took Winchester on in court. I sincerely hope he does this and wins. While I am not a fan of lawsuits in general, this is a clear case of someone’s idea being ripped off by a large corporation, and I choose to put my support behind the smart, hard working and small guy.

By: Pedro

Pedro — Fri, 12 Jun 2020 03:32:33 +0000

Can the 6 mm Arc fit in a AR-15 Sport that shoots the 556/223 round

By: Mach1

Mach1 — Mon, 08 Jun 2020 03:09:26 +0000

Hornady is good at reinventing the wheel and marketing/selling it as a end all be all. I’ve been shooting the 6 fat rat and 243lbc for years. If they were going to get a Grendel based cartridge SAAMI spec why not go with a fat rat or turbo40 design. This cartridge seems pointless to me.

By: D-4297

D-4297 — Sat, 06 Jun 2020 23:06:52 +0000

Read the propaganda , uhhhh article . Please keep trying to convince me that this over-powdered B.B. gun is lethal , with a “other than vital organ hit” at 1,000 yards . I’ll keep my .308 , thank you . One shot ! One KILL !

By: Skip

Skip — Sat, 06 Jun 2020 18:02:29 +0000

Have shot a 6 RAT (6.5 Grendel necked down to 6mm and shoulder blown forward 0.80) for many years and this looks like about the same performance. Best yote gun I’ve used. As said above this has been done but for a turn key package it will sell especially if the military adopts it’s use.

By: chris

chris — Sat, 06 Jun 2020 17:20:46 +0000

Great marketing video but ZERO excitement here. Velocity in a 16″ bbl under 2400 fps? No thanks.

By: chris

chris — Sat, 06 Jun 2020 17:13:09 +0000

They advertise 2600 fps in a 24″ bbl. Military uses a 16″ bbl and tested velocites in an 18″ bbl hover around 2400 fps…so you are looking at a 105 @ 2350 in a 16″ bbl and that’s something to get excited about? My 6×45 did that in an AR. But it will become popular just like the 6.5 Creedmoor which does nothing a @60 or 6.5×47 Lapua can’t do. ALL in the marketing and supply of ammo…

By: RAD57

RAD57 — Sat, 06 Jun 2020 15:46:22 +0000

Tell me then, if I want to build a 6ARC upper which bolt do I need (type 1 or type 2 6.5 Grendel)?