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+--- Thread: What's the difference between the 6mm Grendel and the 6mm ARC? (/showthread.php?tid=21424)
What's the difference between the 6mm Grendel and the 6mm ARC? - WSAR15 - 06-10-2020
Beyond the possible shoulder angle, what the difference?
Thanks
What's the difference between the 6mm Grendel and the 6mm ARC? - kmon - 06-10-2020
Shoulder angle the same but the case body (head space) and overall case length are both shortened .03 inches for better use with Hornady 100+ gr bullets. Yup that is the difference in 6mmAR and 6mmARC. so basically about .4 grains less powder in the ARC but length is better for the heavier bullets
What's the difference between the 6mm Grendel and the 6mm ARC? - grayfox - 06-10-2020
In addition, the 6Arc is Saami'd whereas the 6 Grendel is not, makes it easier for mfrs to support the 6Arc.
What's the difference between the 6mm Grendel and the 6mm ARC? - grayfox - 06-10-2020
I'm thinking of using the 103 Eldx and the Sierra 90 Tgk, maybe the 90 Accubond but the first 2 I already have in hand, it will be my "mini-6Creed".
What's the difference between the 6mm Grendel and the 6mm ARC? - Valjean - 06-10-2020
How are both cartridges different from the 6mm PPC?
What's the difference between the 6mm Grendel and the 6mm ARC? - windsage - 06-10-2020
The 6.5mm Grendel was made by stretching the shoulder of the 6mm PPC longer by 0.0757" to increase case capacity and necking it up to 6.5mm. The 6mm Grendel is basically that cartridge necked back down to 6mm. The 6mm ARC is a 6mm PPC with the shoulder stretched by .0457", exactly 0.030" less than a Grendel case. The big difference is that it's now a SAMMI specified cartridge and so will probably get wider adoption. We will have to see what impact this has on the old Grendel type 1 vs type 2 bolt issue.
What's the difference between the 6mm Grendel and the 6mm ARC? - Valjean - 06-11-2020
Im hoping we will get some high quality magazines out of all of this.
What's the difference between the 6mm Grendel and the 6mm ARC? - Lemonaid - 06-11-2020
For a more numeric comparison try post #32 here http://www.65grendel.com/forum/showthread.php?21931-MONSTER-6mmARC-Barrels/page2&highlight=6mm+ARC
What's the difference between the 6mm Grendel and the 6mm ARC? - A5BLASTER - 06-11-2020
Valjean Wrote:Im hoping we will get some high quality magazines out of all of this.
Didn't know we needed them. My mags are and have been high quality.
What's the difference between the 6mm Grendel and the 6mm ARC? - pinetreebbs - 06-11-2020
Maybe a tweak to prevent chambering a 6.5 Grendel?
What's the difference between the 6mm Grendel and the 6mm ARC? - Valjean - 06-11-2020
A5BLASTER Wrote:Didn't know we needed them. My mags are and have been high quality.
See lots of mag issues on the boards. Mine are working okay now, but it took awhile to get them there. What brand are you using?
What's the difference between the 6mm Grendel and the 6mm ARC? - A5BLASTER - 06-11-2020
Valjean Wrote:See lots of mag issues on the boards. Mine are working okay now, but it took awhile to get them there. What brand are you using?
Cpd/duramags for metal grendel mags for my 12.5.
Modifyed SIX8 pmags for my 12 inch.
What's the difference between the 6mm Grendel and the 6mm ARC? - Harpoon1 - 06-11-2020
Lemonaid Wrote:For a more numeric comparison try post #32 here http://www.65grendel.com/forum/showthread.php?21931-MONSTER-6mmARC-Barrels/page2&highlight=6mm+ARC
When did the Grendel get a 60 degree shoulder?
Think you have a math error brother! Same thing for the 6 PPC! Both have 30 degree shoulders, just like the 6mm ARC.
What's the difference between the 6mm Grendel and the 6mm ARC? - LR1955 - 06-11-2020
pinetreebbs Wrote:Maybe a tweak to prevent chambering a 6.5 Grendel?
Already covered. You won't shove a 6.5mm neck into a chamber cut for a 6mm and finally, a 6.5mm bullet isn't going into a 6mm bore.
I use my Grendel magazines with the 6 AR with no problems so I doubt a new follower is needed for the 6 ARC.
LR55
What's the difference between the 6mm Grendel and the 6mm ARC? - pinetreebbs - 06-12-2020
LR1955 Wrote:Already covered. You won't shove a 6.5mm neck into a chamber cut for a 6mm and finally, a 6.5mm bullet isn't going into a 6mm bore.
I use my Grendel magazines with the 6 AR with no problems so I doubt a new follower is needed for the 6 ARC.
LR55
Thanks!
What's the difference between the 6mm Grendel and the 6mm ARC? - Lemonaid - 06-12-2020
Harpoon1 Wrote:When did the Grendel get a 60 degree shoulder?
Yep, my mistake. I looked at this diagram and saw 60* https://www.accurateshooter.com/technical-articles/cartridgediagrams/
The two 30 degree shoulders add up to 60. I'll edit my post.
What's the difference between the 6mm Grendel and the 6mm ARC? - Harpoon1 - 06-12-2020
Lemonaid Wrote:Yep, my mistake. I looked at this diagram and saw 60* https://www.accurateshooter.com/technical-articles/cartridgediagrams/
The two 30 degree shoulders add up to 60. I'll edit my post.
Roger that.