There is never ending splitting of hairs on AR calibers.

Look at all the BR bolt gun wildcats. This has been going on for a long time.

I still give it a meh but carry on.

Hey, if it sells more rifles and ammo, helping to keep the gun industry healthy, it's good for all of us

Think we can get 65 pages out of this new AR caliber?

Nope but on another much smaller forum we are up to 11 pages on it

I thought we already had the 6mm Grendel, am I wrong?

We do however it isn’t backed by the market players so...

In 6mm AR land you have to size down grendel brass with Redding dies and bushings and it’s 100% handload

So for me - from a coat perspective I dropped out of 6mm AR.

I’m back in for 50 dollar dies and preformed brass !

In fact I guess I’ll list my 243 LBC barrel in the classifieds since I won’t be needing it...

I wish Hornady well with it, I like them. I just don't have a need to incrementally increase caliber by less than a mm from 5.56 to 12.7

what caliber bolt faces are compatible with the 6mm arc

.136 bolt face depth - I.e. 6.5 Grendel bolt

I keep seeing AR, what about a Bolt

Patrick, it was introduced for the AR, just like the Grendel was....depending on success you’ll see bolts on the market son, just like the mini action Grendel from Howa.

Howa has signed up and they make 6,5b Grendel bolt actions

I do think this round is much more versatile and marketable than the 224 Valkyrie.
I ran the 6mm on the 6.8 case for a while and it was a very efficient round with up to 80 gr bullets. The fact you can run 105’s and readily available components will IMO put it ahead of both Valkyrie and Grendel especially if military does continue support.

Had about five people shoot 6.5 Grendels on my range, and all the way to the end. I bet this 6mm will be lots of fun to shoot as well. kmon1 told me of the 6mm Grendel last year, and it's been in the back of my mind. Hornady realized the potential of the wildcat, and said "well, we will just make a standardized cartridge much like it". Hornady impresses me every year. I've spoken to Tech Support twice, and they are always helpful and very friendly. They are one of the companies out there that is is obvious they have shooters working for them.

Hornady listens and aint skeerd. I guess I mean they got $$$

Would you want a bolt? I think I'd go plain jane 243WIN if I wanted a 6mm bolt. 6ARC is a bit weak compared to it, because it was limited to AR15.

Had one, was never impressed with the factory ammo

I wonder how this cartridge compares to the 6 Dasher which is used in both benchrest and PRS? Judd?

You know there is a way around that.

I’m running 87 grain VLD’s at 3200 fps, Patrick and seems to work really well.....getting 1/2 MOA out of a factory (mostly) 700. Just need to learn how to shoot!

Less velocity than the Dasher, Some of the Grendel 6mm variants have been standing up quite well in some competitions. The 6mm Rat, 6mm fatrat, 6mmAR are a few that come to mind.

I look for bolt actions from 3 manufactures before long, Howa, Ruger and CZ which all have Grendels now and it is just a barrel change to have a 6mm ARC from a Grendel.

Patrick Howa is on board to build their mini action bolt gun in it. I expect Ruger and CZ will also have some boltactions before long but with CZ you never know.

Advantage over a 6.8 or Grendel I would say none inside 250 yards or so. further out the 108 and 103 gr Hornady bullets will give it an advantage over the 6.8 and Howa for target use and enguaging targets at longer distance. More splash from the bullet down range than the Valkrie and light enough recoil to spot your own shots, which I do with the Grendel from My AAR anyway. A handloader can use the Grendel and beat the ARC velocity with 100 to 108gr bullets but they do not have the BC of the longer 6mm bullets so loose that advantage before 300 yards much like the Grendel does with the 6.8 SPC.

The owner of the 65Grendel forum put it this way between 6mmARC and the Grendel

Grendel is a good hunting cartridge that works well for hunting and is fun for Target shooting out to 1000 yards but will not be competitive against larger cartridges with more powder capacity

The 6mmARC is a more of a target cartridge that will do better past 500 yards than the Grendel with light enough recoil to be your own spotter and works for some hunting.