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#6499757 - 10/17/16 06:50 PM
6.5 Grendel or 6.8 SPC II
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Pro Tracker
Registered: 02/22/12
Posts: 1174
Loc: MIDLAND
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Looking at either a 20" 6.5 Grendel or a 16" 6.8 SPC II.
Ranges up to 500yds possible but 90% of shots within 200yds. For pigs and deer. Ammo availability not a concern.
I know it's nitpicking but what would you go with?
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#6499785 - 10/17/16 07:10 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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THF Celebrity
Registered: 01/06/11
Posts: 21540
Loc: Rowlett, Tx
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#6499800 - 10/17/16 07:18 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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Pro Tracker
Registered: 03/09/11
Posts: 1779
Loc: Parker County
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I went with the 6.5 Grendel.
_________________________
It is far more important to be able to hit the target than it is to haggle over who makes a weapon or who pulls a trigger.
— Dwight D. Eisenhower
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#6499801 - 10/17/16 07:18 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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THF Celebrity
Registered: 12/16/08
Posts: 20909
Loc: Wolfe City, TX
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#6499811 - 10/17/16 07:31 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: FiremanJG]
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Taking Requests
Registered: 11/17/10
Posts: 20582
Loc: Killeen/Ft Hood, TX
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come on now 120SST will be fine at 500 I've done it easily now 700 plus it gets tough and the 6.5 might be they best choice. I don't think he can go wrong with either if he doesn't plan to go past 500.
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#6499862 - 10/17/16 08:10 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: SapperTitan]
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THF Celebrity
Registered: 12/16/08
Posts: 20909
Loc: Wolfe City, TX
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I've spotted both rounds go down range. Throw a cross wind in the equation, and the 6.5 is more repeatable to get hits. The 6.8 was unable to get hits past 700, the 6.5 hit 800 at will, and even hit 1 MOA at 800 multiple times, out of three rifles. No he did not mention past 500, but the data I am sharing should show that the 6.8 is running out of gas at 500 and the 6.5 is not.
I'm not saying anything bad about the 6.8 I know many THFers love it for hunting, and I believe every one of them. I'm just talking about the physics associated with each cartridge.
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#6499897 - 10/17/16 08:27 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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Tracker
Registered: 08/06/14
Posts: 857
Loc: Galveston Bay
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When you add long range in the mix the grendel is the choice. If it is 100% below 200 yards then 6.8
He really answered his own question by throwing in the 500.
Edited by Bigfoot (10/17/16 08:28 PM)
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#6499945 - 10/17/16 08:49 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: FiremanJG]
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Taking Requests
Registered: 11/17/10
Posts: 20582
Loc: Killeen/Ft Hood, TX
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I've spotted both rounds go down range. Throw a cross wind in the equation, and the 6.5 is more repeatable to get hits. The 6.8 was unable to get hits past 700, the 6.5 hit 800 at will, and even hit 1 MOA at 800 multiple times, out of three rifles. No he did not mention past 500, but the data I am sharing should show that the 6.8 is running out of gas at 500 and the 6.5 is not.
I'm not saying anything bad about the 6.8 I know many THFers love it for hunting, and I believe every one of them. I'm just talking about the physics associated with each cartridge. Gotcha and if I wanted to go beyond 500 id go 6.5 as well
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#6499999 - 10/17/16 09:15 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: SapperTitan]
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THF Celebrity
Registered: 12/16/08
Posts: 20909
Loc: Wolfe City, TX
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He didn't say beyond 500. I'm only saying that AT 500 the 6.5 has the edge.
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#6500030 - 10/17/16 09:30 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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Taking Requests
Registered: 11/17/10
Posts: 20582
Loc: Killeen/Ft Hood, TX
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Out of curiosity what are the differences between 6.5 Creedmoor and Grendel? BC, bullet weights, more or less powder? Are their ballistics similar?
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#6500049 - 10/17/16 09:39 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: FiremanJG]
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Tracker
Registered: 01/26/13
Posts: 936
Loc: Forney, TX
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I've spotted both rounds go down range. Throw a cross wind in the equation, and the 6.5 is more repeatable to get hits. The 6.8 was unable to get hits past 700, the 6.5 hit 800 at will, and even hit 1 MOA at 800 multiple times, out of three rifles. No he did not mention past 500, but the data I am sharing should show that the 6.8 is running out of gas at 500 and the 6.5 is not.
I'm not saying anything bad about the 6.8 I know many THFers love it for hunting, and I believe every one of them. I'm just talking about the physics associated with each cartridge. So say a fella decided to go 6.5 Grendel, and thought that maybe 600yd would be the maximum; what barrel length would you suggest? I'm really curious because the 300blk lost its fizz for me. I just sold my upper and supplies and am looking for a better caliber for my lower.
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#6500050 - 10/17/16 09:39 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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Veteran Tracker
Registered: 01/09/11
Posts: 2158
Loc: Mesquite/Canton
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I'm a 6.5 champion, but my 20" Grendel is my go to AR. I don't like 270, but have friends that love their 6.8s for hunting. When I heard about the 6.5 Grendel, I called and talked with Bill Alexander. He told me out to 600 yards the 20" barrel is plenty, but if you want to go for 1000 then get a 24". Then he said "hell if your hunting in East Texas, a 16" is plenty!" I have one of his early .50 Beowulf rifles, he likes the pics of down hogs! Again, I love 6.5s I have several different ones!
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#6500090 - 10/17/16 10:05 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: eneat1119]
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Veteran Tracker
Registered: 12/06/09
Posts: 2179
Loc: McKinney, TX
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6.8 is the mostest optimum answer. Go with it and never look back.
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I prefer to think of myself as a control enthusiast. 
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#6500113 - 10/17/16 10:17 PM
Re: 6.5 Grendel or 6.8 SPC II
[Re: SapperTitan]
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Extreme Tracker
Registered: 01/14/12
Posts: 4648
Loc: Austin, TX
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Out of curiosity what are the differences between 6.5 Creedmoor and Grendel? BC, bullet weights, more or less powder? Are their ballistics similar? Amount of powder capacity. Creedmoor is basically an improved version of the 260 because Hornady did a real good job on the shoulder geometry. The Grendel was invented in Euro land as they necked down the 7.62x39 to 6.5. Alexander Arms refined the design a little and changed the brass to allow for more PSI. So basically, the 6.5 Creedmoor is a necked down 308 and the 6.5 Grendel is a necked down 7.62x39.
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