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#6473315 - 09/29/16 08:23 AM 6.5 Grendels came out to the range.
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
Three firemen that work at my station brought out identical rifles (don't judge) to go through the class. Radical uppers with 20" barrels, and factory Hornady ammo. Two of them were shooting 123 A-Max, and one was shooting 123 gr. SST. We discussed the BC on both bullets, and Hornady publishes them as the same BC. Only one way to find out, I said. It was 90F with slight mirage right to left, indicating less than 5 mph wind.

All three rifles got a zero within 1/2" at 100 yards, then we headed down the range. After 400 yards I went back into the calculator and adjusted MV down to 2400 fps. All three rifles made it to 800 yards with no problems. I was very impressed by what the little cartridge can do at such a long range. Obviously hits didn't look as hard as they would have from a larger 6.5 mm, but they were hitting exactly where they should have, repeatedly. I've read that the 6.5 Grendel is supposed to be a good hunting cartridge, that is capable of long range target, and it proved to be absolutely true.

I've had other customers out with 6.8 SPC, and never could we get them to hit 800 yards. After 700 yards, I'd lose the bullet in the air. Clearly the 6.8 has a great following, and I'm not knocking it in any way. But if a guy wanted an AR-15 to hunt with as well as shoot long range target, the 6.5 Grendel proved that it absolutely can do it.

One odd thing we had happen was with the 123 SST, it spin drifted to the right. Not just once, but every time past 400 yards. The guys shooting the A-Maxes had to hold a right wind. The SST had to hold no wind, or a left wind, even though the mirage was clearly right to left. The only explanation I could come up with was the fact that the SST has a cannelure, and an A-Max does not. I hypothesised that the cannelure digs into the air, during flight, and causes a right drift. Had we been in higher wind, we wouldn't have seen the drastic difference, I suspect. Just to be sure it wasn't a scope or rifle difference Rob (who was shooting SST) put another guy's A-Max ammo in his rifle, and bingo, no spin drift to the right. I thought that was interesting.
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#6473363 - 09/29/16 09:01 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
jeepercreeper Offline
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I ran into a guy shooting one a couple months ago and its a cool little round. If I were wanting an AR hunting caliber and didn't want to step up to AR10 platform for a 6.5 creed or 308, I'd consider one. But for my needs, it doesn't really have a place in my arsenal.

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#6473399 - 09/29/16 09:22 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
RiverRider Online   content
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Gotta wonder if a cannalure will always cause that. ?????
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#6473400 - 09/29/16 09:23 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
Big A Offline
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Registered: 11/19/10
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Loc: DFW
I have been wanting to build one for some time.
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#6473409 - 09/29/16 09:30 AM Re: 6.5 Grendels came out to the range. [Re: RiverRider]
FiremanJG Offline
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Originally Posted By: RiverRider
Gotta wonder if a cannalure will always cause that. ?????


Sure is fishy. I'd think you'd need enough twist on a cannelure bullet to cause it. Like a 10 twist .308 and a light bullet, with cannelure. I don't know. I'd dare say I'd make an official test, but days with almost no wind aren't very common.
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#6473414 - 09/29/16 09:32 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
QuitShootinYoungBucks Online   content
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Registered: 11/01/12
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Loc: Lubbock, TX
The BC on the 6.8 just won't work that far out, IMO. However, when I come see you next year, I'll bring mine and we'll see what it can do after we finish the real work.
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#6473432 - 09/29/16 09:40 AM Re: 6.5 Grendels came out to the range. [Re: QuitShootinYoungBucks]
FiremanJG Offline
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Registered: 12/16/08
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Loc: Wolfe City, TX
It'll hit 700. We've done it twice with two different shooters, and two different rifles. 800, I just can't see where it goes, it must be starting to yaw.

No one had hand loads, though. A stout hand load and a longer barrel might get it done. But the 6.5 still has the better BC.
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#6473448 - 09/29/16 09:52 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
QuitShootinYoungBucks Online   content
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Registered: 11/01/12
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Can you push the 130gr VLD with the 6.8 fast enough to get out there? .452 isn't great but it isn't bad, either. Not sure about mag length on that too.
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#6473464 - 09/29/16 10:01 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
redchevy Offline
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Registered: 10/25/04
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More I read about the Grendel the more I want one.
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#6473477 - 09/29/16 10:07 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
Brother in-law Online   content
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I would rather keep my 16" barrel and only be able to shoot 700 yards

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#6473502 - 09/29/16 10:17 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
TxAg Offline
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Registered: 01/15/07
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Loc: Live in Katy, Hunt in Llano Co...
Interesting results, thanks for sharing!

1/2" of zero at 100 for "budget" upper is not too shabby.
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#6473530 - 09/29/16 10:34 AM Re: 6.5 Grendels came out to the range. [Re: Brother in-law]
kmon1 Online   content
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Registered: 09/27/06
Posts: 20318
Loc: Texas
Originally Posted By: Brother in-law
I would rather keep my 16" barrel and only be able to shoot 700 yards


Just get the Grendel in 16 inch and still make 800.
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#6473553 - 09/29/16 10:47 AM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
ccoker Online   content
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Registered: 09/17/09
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As much as I love my 6.8s for hunting, the Grendel is definitely better for long range.
A buddy had a JP upper a few years ago and we were making 1K hits easily with it.
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#6473904 - 09/29/16 03:02 PM Re: 6.5 Grendels came out to the range. [Re: FiremanJG]
BigPig Online   content
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Registered: 08/27/09
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Talk to me about this 6.5 Grendel. I've never paid attention to them. I'm thinking about selling this AR10 308 for something lighter, and the 6.5 Grendel sounds like it might fit the bill.

How effective is it for hunting compared to a 5.56 55gr vs 308 168gr? Is it a middle of the road between the two, or statically better than both?
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#6473917 - 09/29/16 03:14 PM Re: 6.5 Grendels came out to the range. [Re: BigPig]
FiremanJG Offline
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Registered: 12/16/08
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A look at Hornady's ballistics should tell you the difference. Pay attention to foot pounds delivered at what ever distance you want.

It can't be statistically better than a .308. Physics won't allow it.

In my opinion it is the most potent round for an AR-15 platform.


Edited by FiremanJG (09/29/16 03:17 PM)
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