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6.8 vs 6.5

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 13:26
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Chief Sackscratch

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Whats the difference balistically between the two.  I know the 6.8 as been more popular and all but just didn't know how they both faired.  I'm balistically challenged so I figured yall could help.Big Grin
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 13:38
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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 13:41
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Chief Sackscratch

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would the creedmoor be similar to the Grendal or however you spell AA's version?

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:02
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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:03
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6.5 Grendal fits the AR15 platform while the 6.5 Creedmoor fits the AR10 package.
 
Below are some graphs I found on AR15.com
 
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:04
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Chief Sackscratch

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So from the looks of things the creedmoor has more energy than the other two but longer as well.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:07
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Chief Sackscratch

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are those charts for the creedmoor or grendel.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:08
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Those graphs are for the 6.8 and the 6.5 Grendal.  Since the 6.5 Creedmoor is close to a 260 and does not fit in the AR15 package you may want to compare the ballistics of the Creedmoor to a 308 or 260 since they all fit on the same platform.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:09
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Chief Sackscratch

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I am looking more at the 15 platform.  Good to know that the Grendal is pretty good.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:10
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Right... The Creedmoor is faster in the 120 +/- grain at around 3000 fps.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:16
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The 6.8 and the 6.5 Grendal are pretty close in performance until 300 yards or so, that is where the 6.5 out does the 6.8.  I went with the 6.8 because there is more factory ammo available as I haven't started reloading yet.  What do you want to do with the rifle?

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:20
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Chief Sackscratch

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I am think of building a AR deer rifle for the woods but haven't made up my mind quite yet.  I am kinda gonna narrow it down in two categories.  the 6.5 vs similar and then the big bore AR uppers.  then compare the cost to shoot and reload of the two finalist of the two categories and build/buy one.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:24
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Look on the 6.8 forums, there is a ton of information on there regarding the 6.8.  I didn't llok to hard at the 6.5 due to the ammo issue.  I plan on using my 6.8 this year to hunt deer in Tennessee and Arkansas. 
 
Also, go to the AR Performance website, they build AR's in pretty much every flavor from 5.56 to 308.  That is where I bought my upper.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:26
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I'll most likely put my own together.  I reload so I just need to figure out if loading for the Grendal is as affortable as the 6.8  IF so then i think ballisitically is would be the better choice.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:34
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I figured you would but it together, but the site would also give you more information on both.  Have fun and of course pictures are required when done.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:37
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More info for you, from my saved stuff from when I was researching.  This is from the guy that owns AR performance, he shoots both and a whole bunch of others in the AR platform:
 
6.5 Grendel using Bill Alexanders max loads in a 16" barrel- zeroed at 200yds drops at 300yds.
due to energy being less than 1000ft lbs 300 yds is about max for taking deer or hogs with either caliber.
the same temp, pressure, line of sight and program used to figure all drops in both calibers.
This data figured using my normal altitude, BP and humidity settings for Colorado
100 Nosler-2600fps––drop 9.4/801 ft lbs
107 SMK-2545fps––––-drop9.5/878ft lbs
123 SMK-2472fps––––drop 9.4/1083ft lbs
120TSX-2472fps––––drop9.8/984ft lbs

6.8 SPC SSA factory ammo 16" barrel
100 Nosler-2700fps––drop9.0/809ft lbs
110 Nosler-2630fps––drop9.0/939ft lbs
110TSX-2630fps––-drop 9.5/856ft lbs ––––––added
6.8 handloads max
100 Nosler 2950fps––-drop 7.4/993ftlbs
110 Nosler 2750fps––drop8.2/1040ftlbs

Available factory ammo

6.5 Grendel––––––––-
Hornady-123 Amax
Wolf -120 copper plated bullet or something, gunwriter will be along in a minute to lets us know
––––––-123 soft point
AA––––120 Nosler
––––––-123 Lapua
––––––-129 SST
––––––-90gr TNT

6.8 SPC
BVAC––––––-110 Vmax
––––––––––––––-115OTM
Corbon––––––110 TTSX
––––––––––––––115 SMK
––––––––––––––115 subsonic
DoubleTap––95TTSX
––––––––––––––-110 Vmax
––––––––––––––-115 FMJ
––––––––––––––-110TTSX
––––––––––––––-110 OTM
Hornady––––-110 Vmax
––––––––––––––-110 OTM
Hunting Shack-110 Vmax
––––––––––––––-115 OTM
Rem.––––––––-115 FMJ
––––––––––––––-115 HPBT
––––––––––––––115 corelokt
––––––––––––––115SMK
Sellier&Bellot-110 TTSX
––––––––––––––––-110 Vmax
SSA––––––––––––85 TSX––––––––––––SSAs loads available in Commercial and Tactical velocities
––––––––––––––––90 TNT
––––––––––––––––95 frangable
––––––––––––––––97 AP
––––––––––––––––100 Nosler Accubond
––––––––––––––––110 Nosler Accubond
––––––––––––––––110 Sierra Pro hunter
––––––––––––––––110 TTSX
––––––––––––––––115 SMK
––––––––––––-95gr Barnes TTSX coming soon

Manufacture of rifles/uppers
––––––––6.8 ––––––––-
Barrett
RRA
Armalite
LMT
Bushmaster
TC
MSAR
Cmmg
Remington
Addax
POF
WOA
Globa Tact.
LWRC
Stag
DPMS
Noveske
PRI
MSTN
Ruger
Wilson Combat
FN
Robinson Arms
Titan
Bison
AR Performance
YHM
Model 1 sales
JT distributing

6.5 Grendel makers––––––––––
Alexander Arms
Sabre Defence
SSK
JP Ent.
Saturn- barrels only
War Dog outfitters
Templar Consulting
could not find any on JT dist or Tactical Rilfes sites, Precision Rifles buys barrels from Les Baer and white oak to build the 264LBC and 6.8SPC

264LBC makers and ammo
Les Baer
Black Hills 123gr Amax
AR Performance
SAOD ind(Lothar Walther)
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:37
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Chief Sackscratch

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oh yeah its just now starting to get my attention. I have a guy intereted in my 24" 223 upper so i am using that a justification to do another.  One goes, one comes.  ya know.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:38
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BRD at its finest
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/03/2010 at 14:38
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Chief Sackscratch

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thanks for that list.  good info for me
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/04/2010 at 09:48
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Here's a good link for comparative analysis. http://shootersforum.com/attachment.htm?attachmentid=446&d=1076081272
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/04/2010 at 09:49
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Thanks
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/04/2010 at 09:50
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Originally posted by SVT_Tactical SVT_Tactical wrote:

Thanks
     Thunbs Up
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/04/2010 at 15:29
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I looked at both, for hunting, chose the 6.8 and haven't looked back
I feel very confident out to 400 yards with one on deer or hogs

my bolt actions hardly ever make it out of the safe any more..
and I haven't ran into a situation that required a bunch of shots,  only 2 times I have fired more than one round (hogs)

Still,  I like the 6.8 a lot, I have had several, am using a Wilson Combat with an Accupoint mildot/green dot reticle

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/04/2010 at 19:38
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Originally posted by SVT_Tactical SVT_Tactical wrote:


 I reload so I just need to figure out if loading for the Grendal is as affortable as the 6.8 


No, it isn't.  Not even close.  Brass for the Grendel is much more expensive.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/04/2010 at 20:14
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Originally posted by RifleDude RifleDude wrote:

Originally posted by SVT_Tactical SVT_Tactical wrote:


 I reload so I just need to figure out if loading for the Grendal is as affortable as the 6.8 


No, it isn't.  Not even close.  Brass for the Grendel is much more expensive.

over $20 per 100 cases difference, and thats for cheap grendel brass from hornady. its over $30 difference for the better stuff.
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