Comments on: The Amazing 30 Major — 6.5 Grendel Necked Up to .30 Caliber

By: Harmon Ed

Harmon Ed — Wed, 23 Nov 2022 19:45:13 +0000

Actually, I make my Grendel brass from Win 7.62×39 brass, single pass, fire form, trim. I use 120 SMKs But the 308×39 is the Ruger Mini 30, all of the original guns, all had .308 barrels. So if you have an accurate gun, sub .5″ groups with H-322 is possible with 150s at 2,500 fps. Then if you blow the case body out with a sharp shoulder you get the Grendel case capacity, makes it even easier to achieve velocity.
Richard Mertz of MOA was doing this in the MOA guns during the 90s, for silhouette shooting, called the cartridge the 30 American.
Similar to a 308 VS a 30-06 just a miniature semi rimmed 308. Makes a handy light weight AR-15 with a .308 barrel.

By: frank e. anderson

frank e. anderson — Mon, 23 Mar 2020 02:27:12 +0000

OKAY, IT IS 3 YEARS LATER AND I HAVE BUILT A 7.62X39 UPPER FOR MY AR 15. NOW I WOULD LIKE TO RELOAD IT TO TRUE .308 AND HIGHER PRESSURE THAT THE AR 15 PLATFORM IS CAPABLE OF. IS ANYONE DOING IT? WOULD LIKE TO BE ABLE TO SHOOT 150 GRAIN BULLETS AT AROUND 2500FPS. THE 308 WAS NECKED UP TO MAKE 338 FEDERAL WITH HEAVIER BULLETS AT HIGHER SPEEDS. WHY NOT THIS? MY BUILD USES 6.5 GRENDEL MAGS WITH NO RELIABILITY PROBLEMS AT ALL.

By: RICH LOVIN

RICH LOVIN — Fri, 30 Aug 2019 03:10:46 +0000

Can tis be formed from 7.62×39 brass?
if not, why not?

By: Steven

Steven — Sun, 13 Jan 2019 03:25:59 +0000

6mmAR.com has made a 30 ARX what are the cartridge differences?

By: Ben

Ben — Thu, 08 Nov 2018 01:13:46 +0000

Grendel is not 7.62×39 necked down to .264

Grendel is a distant relative, and closer related to the PPCs. The big difference between a 22/6/6.5 PPC/Grendel/ARX/Major and an x39 is the case body taper.

The PPCs and Grendel, etc taper ~10-thou between the base and shoulder, while the x39s taper ~50-thou

That’s a big difference for magazine and platform compatibility with the AR-15.

By: Jordan K.

Jordan K. — Sat, 07 Oct 2017 19:23:15 +0000

How does this differ from the 30 ARX?

http://bulletin.accurateshooter.com/2013/12/new-30-arx-6-5-grendel-necked-to-30-caliber-beats-300-blk/

By: Bo Guss

Bo Guss — Wed, 22 Mar 2017 20:09:41 +0000

[URL=http://img110.xooimage.com/views/1/7/d/30maj-51e3fed.png/][IMG]http://img110.xooimage.com/files/1/7/d/30maj-51e3fed.png[/IMG][/URL]

By: Bo Guss

Bo Guss — Wed, 22 Mar 2017 20:09:14 +0000

http://img110.xooimage.com/files/1/7/d/30maj-51e3fed.png

By: Patrick

Patrick — Wed, 22 Mar 2017 03:23:54 +0000

Nice shooting. I shot a group like that once with 6BR on a Savage action with Criterion barrel. Feels good. Wish I could keep doing it.

By: Christian McCloskey

Christian McCloskey — Tue, 21 Mar 2017 19:34:45 +0000

The 6.5 Grendel is a 7.62×39 necked down to .264 and the “30 Major” is a 6.5 necked up to 30 caliber… Did I miss something? Why not neck up a decent piece of 7.62×39 brass to true 30-caliber dimensions instead?