Grendels and AR style of guns

Discussion in 'AR15/10 Rifles' started by Tall, Oct 23, 2013.

  1. Tall

    Tall Well-Known Member

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    I need a little education about what a Grendel is. Example, My Brother in law is building a 6.5 Grendel. Is a Grendel a description or an actual manufacture like Remington or Winchester? I am specificly interested in building a tactical automatic style of a sniper rifle. I know most AR type of rifles are built in a .223. What about larger caliber auto guns in a tactical style gun are out there.

    I hunt with a bolt action 7mm Remington mag and I have long range ability out to 1000 yards. Looking for some school of thought without being too judgmental.

    Thanks
     
  2. Creedmoor shooter

    Creedmoor shooter Well-Known Member

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    If you are looking for a good like range caliber in a tactical automatic weapon then i suggest a 6.5 creedmoor. Quite a bit more balls than the Grendel. Dpms makes an LR rifle in this caliber. Great cartridge capable of incredible accuracy.
     

  3. MudRunner2005

    MudRunner2005 Well-Known Member

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    I was in full agreement up until this statement....By average, the 6.5 Creed is only about 300 fps faster than the Grendel. I don't know if I'd call that "quite a bit more balls".

    The main difference is this....

    6.5 Grendel - AR15 frame, tons of accessories, almost all accessories and parts that will fit in/on a regular AR15.

    6.5 Creedmooor - AR10 frame, not as many aftermarket parts or support, and is heavier and bulkier.

    These are the main differences in chambering an AR style weapon in the 6.5G vs 6.5 Creed. Either direction will be a good one, and both will excel at serving their purposes when used in their perspective ranges. And both calibers will excel over a .308 Win / 7.62 round....And I am a big .308 fan, but the truth is the truth, and facts are facts.
     
  4. Tall

    Tall Well-Known Member

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    So! The 6.5 Grendel is just a description of the cartridge, Not an actual gun. The 6.5 Grendel is built on an ar-15 platform. Just like a .223 can be put on an AR platform. I could build a 7mm-08 or .308 on an AR platform but Not a Grendel Platform. I think i got it.

    So if I would say want a large magnum semi-auto I would have to use a different platform to build something like that right? I need to familiar myself more with the ballistics and abilities of the 6.5 Grendel vs other calibers now.
     
  5. MudRunner2005

    MudRunner2005 Well-Known Member

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    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).

    .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.
     
  6. Creedmoor shooter

    Creedmoor shooter Well-Known Member

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    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.
     
  7. Creedmoor shooter

    Creedmoor shooter Well-Known Member

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    Im not sayin that the grendel is a bad cartridge. Dont get me wrong, its an excellent ar-15 platform cartridge. i just prefer the extra velocity.
     
  8. c_bass16

    c_bass16 Well-Known Member

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    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.


    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."
     
  9. vatackdriver

    vatackdriver Well-Known Member

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    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.
     
  10. Creedmoor shooter

    Creedmoor shooter Well-Known Member

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    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?
     
  11. vatackdriver

    vatackdriver Well-Known Member

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    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
     
  12. Creedmoor shooter

    Creedmoor shooter Well-Known Member

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    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.
     
  13. Greyfox

    Greyfox Well-Known Member

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    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.
     
  14. MudRunner2005

    MudRunner2005 Well-Known Member

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    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.