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Grendels and AR style of guns

 
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  #8  
Old 10-23-2013, 10:57 PM
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Re: Grendels and AR style of guns

Quote:
Originally Posted by MudRunner2005 View Post
6.5 Grendel is THE top dog hotrod caliber that will fit in the AR15 platform. The .257 TCU and 7mm TCU will also fit, but they're not hotrods. They're built and designed off the .223 case. Same goes for .300 Blackout (7.62x35).

That's not quite accurate, but I believe you had the right intention. Just miss-typed.

The 6.5 Grendel MAY BE THE "top dog hotrod" but of course, that depends on what you feel "hotrod" would normally mean.
One could argue that "hotrod" would equate to velocity, in which case the Grendel is obviously not the top.
You may have meant that "hotrod" refers to the bullet size that can be sent...and that's not true either as the 6.8, 7mm and .7.62 are all fed in some form or another..
So I assume that you're referring to either the kinetic energy deliver at a specific range or the ballistic trajectory at a specific range.
At any rate...it's not the best of anything.

I will concede that it's probably the best over all cartridge for ranges from 400-800 yds in terms of energy delivery and ballistic trajectory.


Quote:
Originally Posted by MudRunner2005 View Post
.308, 7mm-08, .260 Rem, WSSM calibers, 6.5 Creedmoor, etc...Will all have to be built on an AR10.

Nemo Arms makes a .300 WinMag AR style rifle. They're not cheap, but they are badass.
The WSSM is actually designed for the AR15 and with the likes of the 243 and 25WSSM pushing 105-117gr bullets upwards of 3000-3100+ fps. The ballistic advantages are clear.

It's the SAUM/WSM that goes into the AR10 platform.


As to the OP's question about the Grendel...it's just a name, much like 17 Hornet or 221 Fireball.
Do some reading about "Beowulf" the story and you'll probably pick up on why it was called "Grendel" and also why Bill Alexander chose them to name his babies ".50 Beowulf and 6.5 Grendel."
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  #9  
Old 10-24-2013, 07:48 AM
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Re: Grendels and AR style of guns

I have been shooting Grendel for a little over a year now and it is an excellent cartridge. I can get a 120 grn bullet going 2650fps and it shoots fairly flat. With a little investigation you will find that the even flatter wssm rounds shoot real well but barrel life is where you pay the price.
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  #10  
Old 10-24-2013, 08:52 AM
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Re: Grendels and AR style of guns

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Originally Posted by vatackdriver View Post
I have been shooting Grendel for a little over a year now and it is an excellent cartridge. I can get a 120 grn bullet going 2650fps and it shoots fairly flat. With a little investigation you will find that the even flatter wssm rounds shoot real well but barrel life is where you pay the price.
I'm with you there. Those cartridges are going way to fast not to be hard on barrels. I shoot a Creedmoor and that seems to be a barrel friendly cartridge. 140's @ 2750 don't seem to be too bad. What do you think of that grendel?
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  #11  
Old 10-24-2013, 09:38 AM
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Re: Grendels and AR style of guns

I have had three uppers 16,20&24". They all shot extremely well, I kept the 20" and will most likely get another if I sell the .308 I have posted. I think the 6.5 bullets are an almost perfect balance of mid weight and hi BC. I have been torn between the creed and the .260, how far you stretched it out
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Old 10-24-2013, 10:14 AM
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Re: Grendels and AR style of guns

Quote:
Originally Posted by vatackdriver View Post
I have had three uppers 16,20&24". They all shot extremely well, I kept the 20" and will most likely get another if I sell the .308 I have posted. I think the 6.5 bullets are an almost perfect balance of mid weight and hi BC. I have been torn between the creed and the .260, how far you stretched it out
I agree, the 6.5mm bullets are absolutely incredible. I love them. I personally go with the creed just for the better reloading capability. (i can see im gonna start a war with that one) I dont think one is more accurate than the other its just you can get the creed movin a hair more. The farthest ive gone is 400(new to the long range bit) and at 400 getting a hair over 1/4 in.
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  #13  
Old 10-25-2013, 06:08 AM
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Re: Grendels and AR style of guns

The Grendel is a nice cartridge, but a few years ago I bought a 6mmAR which is the Grendel case necked down to 6mm. With my 24", 1:8 twist Hart barrel it will send 75-107 gr bullets from 2800-3100FPS with outstanding accuracy on the AR15 platform. Performance of the 105/107 bullets is within 100-150 FPS of the 6BR and holds .25MOA out at 600 yards with wind drift within a few inches of the 6BR. I simply run the new Gredel brass through the dye and load. The improved 6mmTurbo with the improved case gets you in the 6BR velocity range. I get more that a dozen loadings from the Lapua brass and feeding is perfect. More info about this cartridge on the 6mmAR website. Richard Whitely designed the cartridge.
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  #14  
Old 10-28-2013, 05:37 PM
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Re: Grendels and AR style of guns

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Originally Posted by Creedmoor shooter View Post
Mudrunner, According to the hornady handbook the Creedmoor pushes a 120 grain pill at 3000 fps. The grendel is listed at 2350 with the same bullet. Thats 650 fps. In my opinion thats quite a bit. Not sayin your wrong but thats what the manual says. Unless some better loads have been developed for it that i dont know about.
The Hornady manual sucks. I have one... It collects dust. My Nosler and Berger manuals were bought at the same time and are falling apart because of how much I use them...

Hornady Custom Ammo 6.5 Grendel 123 Grain A-Max Boat Tail Box of 20

Muzzle velocity: 2,620 fps
Muzzle Energy: 1,875 ft/lbs.
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