6.5 Grendel

[Hohn]

Brian Shaffer (hornhill range) has killed a lot of hogs with the TNT. Most of them are DRT.

Must be the slower speed of the Grendel that helps them not explode?

 

[Rookie]

I don't know. He does a lot of necropsy and they show good penetration and expansion.

 

[roscott]

I'm getting right at MOA with them. They are devastating on possums. I shot a possum by my shed at 60 yards and my shed looked like a Jackson Polluck painting. I'll be using them for coyotes this year. I zeroed at 50 yards. They were 2 inches high at 100, 2.5 at 150, and 2 at 200. 123 sst drop 1.5 low at 200, so the federals shoot a lot flatter. I ended up dropping my zero to one inch under at 50.

What MPBR does an inch low at 50 give you? Are you dialing for long range?

 

[Rookie]

I'm going for as flat as possible 0-250. I'm going to check what one inch low at 50 will do out to 200 on Friday.

This is my coyote gun and judging distance with thermal is very difficult. Most shots are 60-100, but I want to aim dead center out to 250.

 

[roscott]

I'm going for as flat as possible 0-250. I'm going to check what one inch low at 50 will do out to 200 on Friday.

This is my coyote gun and judging distance with thermal is very difficult. Most shots are 60-100, but I want to aim dead center out to 250.

Makes sense. What barrel length? Mine is 12.5”, so MPBR for me is just over 200.

 

[Rookie]

18. I'd love to switch to 12.5, but I'm not sure how much velocity and distance I'd lose.

 

[roscott]

 

[roscott]

Hopefully that’s not too blurry to read. It’s a comparison done between a 12.5” Ballistic Advantage Grendel barrel and an 18” BA Grendel barrel.

I found it very interesting. Still thinking of doing an 18” in the future.

 

[Rookie]

KNOCK IT OFF! I'm already tempted...

 

[Rookie]

Where do you live? I'd love to do a side by side comparison.

 

[roscott]

I’d like that! I’m in central Hamilton County, but I often shoot in Boone County.

 

[rengler22]

I just ordered the Ultimate Upper Kit from LaRue (Great deal, by the way) in 6.5 Grendel! I have no idea why I waited so long to get something in this caliber. I hadn't considered hunting with an AR (even 300 BLK) but the ballistics on this round in an AR15 platform are really exciting to me. Good luck with yours!

 

[Hohn]

Hopefully that’s not too blurry to read. It’s a comparison done between a 12.5” Ballistic Advantage Grendel barrel and an 18” BA Grendel barrel.

I found it very interesting. Still thinking of doing an 18” in the future.

I'd do 18" for a general purpose Grendel, but since I'm hoping to also use a Grendel for competition (NRA Midrange Tactical), I'm thinking about a 20" (rule book max) with the heaviest profile I can fit under a guard. Not ideal for hunting, but even a bull barrel 20" AR isn't terribly heavy. Not compared to the 24" and 26" varmint guns.

 

[SSE]

I am thinking about getting a 6.5 G and the 1/2" groups you guys are getting sound fantastic.
What brand barrels are you guys using?

 

[Rookie]

Satern barrel from Brownells. Comes with a head spaced bolt face.

 

[DadSmith]

I am thinking about getting a 6.5 G and the 1/2" groups you guys are getting sound fantastic.
What brand barrels are you guys using?

Bought my 20" fluted 5r barrel from Bear Creek Arsenal. Got it delivered for $67. Was on sale at the time.

 

[Hohn]

18. I'd love to switch to 12.5, but I'm not sure how much velocity and distance I'd lose.

Selected velocity vs barrel length data from AA to give an idea.

http://www.alexanderarms.com/images/pdfs/grendel_ballistics.pdf

 

[roscott]

Bought my 20" fluted 5r barrel from Bear Creek Arsenal. Got it delivered for $67. Was on sale at the time.

Wow, that’s very inexpensive. What kind of accuracy is it producing?

I’ve built a couple with Ballistic Advantage barrels, and been immensely pleased with the results.

 

[DadSmith]

Wow, that’s very inexpensive. What kind of accuracy is it producing?

I’ve built a couple with Ballistic Advantage barrels, and been immensely pleased with the results.

With Hornady Black 123gr ELD match I avg around 0.6" 5 shot groups at 100 yards.

 

[DadSmith]