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Old 01-18-2018, 03:52 PM   #1
Kenner97
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Default 6.5 grendel load data

I ordered an upper in 6.5 grendel that should be here soon. it has a 20" barrel and 1/8 twist. planning on shooting 123gr sst or maybe 120gr.

i bought a few boxes of Hornady Black 123gr eld-m to see how it does and to get some brass.

Anyone have any load data for the grendel?
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Old 01-18-2018, 04:03 PM   #2
Outbreaker
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I have load data on the 120 NBT. The powder I used has been delisted so I am not sure if it is safe to share anymore.

My suggestion........Lapua or AA (made by lapua) Brass .
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Old 01-18-2018, 08:53 PM   #3
sir shovelhands
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Grendel is SAAMI spec, so Hodgdon's will have data:

http://www.hodgdonreloading.com/data/rifle
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Old 01-18-2018, 09:13 PM   #4
tpepper70
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Love my G. 120gr Nosler Ballistic Tips and Sierra 120gr Match Kings both shoot to same POI out to 300 yards with around 27.5gr of ARComp powder. I'm not sure on the speed, but it's so dang accurate I decided to stop load development. It's prob 2450-2500, which is plenty fast. Good luck.
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Old 01-19-2018, 06:36 AM   #5
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My Grendel likes 28gr of CFE 223 under a 123gr Amax bullet. It isn't very fast but will put 5 overlapping at 100y easily.
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Old 01-19-2018, 06:49 AM   #6
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My Grendel likes 28gr of CFE 223 under a 123gr Amax bullet. It isn't very fast but will put 5 overlapping at 100y easily.
Mine loves CFE as well. It has been delisted as a powder choice though. My bet is due to pressure spikes. My chronograph showed nasty spikes as it approached max.

I would not suggest using it anymore. I will be going to TAC once my current loads are shot up.
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Old 01-19-2018, 07:11 AM   #7
scott.str
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have a few 26.5 gr of XBR at 2360fps with 123gr a max. 30.9 of cfe 223 shot ok.
Best group i had was 27.5 of xbr little under 1" but pressure signs where showing so work up to this and dont take my word for it.

This summer ill be working alot on a good 100gr multi purpose load for it
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Old 01-19-2018, 07:46 AM   #8
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Over on 65 Grendel Ramshot TAC tends to be the "Go To" powder in the 120gr that I shoot. I have used.

Varget, CFE223, Benchmark, BL(C)2, all with good results it is funny how both bullet and powder mfgs change what powders it recommends over time. All of these have been official powders, and Benchmark used to be a "no-no......to fast". And now Benchmark is the only one still listed.....I was using it with good results before it was official.
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Old 01-19-2018, 07:58 AM   #9
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I really wanted to like XBR but never could get good grouping out of it.
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Old 01-19-2018, 09:54 PM   #10
sierracharlie338
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I have not loaded for the Grendel yet since mine isn't here yet but I have used XBR extensively in 223 and 308. I am very impressed with its accuracy potential but I find in EVERY rifle it tends to be slower than other powders.

When mine gets here Ill be trying TAC most likely if I can find it.
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Old 01-20-2018, 03:56 PM   #11
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Thanks for the info.
Should get here on tuesday
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Old 01-21-2018, 11:01 PM   #12
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22” 1-8 twist
123 amax
Lapua brass
Rem 7 1/2
28gr XBR
2504 FPS average with single digit SD
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Old 02-06-2018, 10:43 AM   #13
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Has anyone tried H335 powder?
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Old 02-06-2018, 05:40 PM   #14
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Lots of powders work for the Grendel that work well for the 223 and 308. I use more CFE223 than any other but there are those that use all the powders listed above. Hodgdon has said CFE223 is too slow burning for the Grendel but many use it with great success.

8208 is a very popular powder for the 123gr bullets, treat 28.5 gr as the never go above and approach only with great caution

Nosler, Alliant, Hodgdon all have Grendel loads listed on line. Hornady and Nosler have loads in their manuals

A couple Grendel specific handbooks are available at http://www.ar15buildbox.com/
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Old 03-02-2018, 10:01 AM   #15
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Messing around in QL this morning... Powder / Max safe load / Expected MV

CFE223 30.4 2479
IMR8208XBR 27.3 2417
AR Comp 26.8 2472
A2520 29 2453
TAC 29.3 2402

I know CFE223 was delisted and folks say it spikes, but it seems to hit a sweet spot on full burn / uses up case capacity / good MV.

Disclaimer: *Do not try these at home, always reload to official specs. These are derived numbers from a computer program, not recommended or tested recipes*
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Old 03-02-2018, 10:31 AM   #16
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Quote:
Originally Posted by Balcones_Walker View Post
Messing around in QL this morning... Powder / Max safe load / Expected MV

CFE223 30.4 2479
IMR8208XBR 27.3 2417
AR Comp 26.8 2472
A2520 29 2453
TAC 29.3 2402

I know CFE223 was delisted and folks say it spikes, but it seems to hit a sweet spot on full burn / uses up case capacity / good MV.

Disclaimer: *Do not try these at home, always reload to official specs. These are derived numbers from a computer program, not recommended or tested recipes*
Could you please run QL with Benchmark and 120gr SMK?

My load with CFE223 is 31.2 and many are using it safely to higher than that. (some have even pressure tested it with a pressure barrel).
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Old 03-02-2018, 10:39 AM   #17
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Quote:
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Could you please run QL with Benchmark and 120gr SMK?

My load with CFE223 is 31.2 and many are using it safely to higher than that. (some have even pressure tested it with a pressure barrel).
Will do! It may take me a day though.
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Old 03-02-2018, 10:42 AM   #18
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Will do! It may take me a day though.
That is fine, I appreciate it. I have found max numbers from 27gr to 28.8 gr.

I am looking to try benchmark for temp stability over CFE223, even though I am getting great groups and good velocity with it.
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Old 03-02-2018, 11:54 AM   #19
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Going to work on a load using H335 this weekend if my SMK and NBT's come in on saturday like they are supposed to.
If it doesn't work well then I might get some CFE223.
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Old 03-02-2018, 03:02 PM   #20
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Worked up a load with AR Comp and 123ssts. Only about 2420 but my SD is 4.


Sierracharlie outÖ
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Old 03-03-2018, 04:50 AM   #21
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Originally Posted by Kenner97 View Post
Has anyone tried H335 powder?
Iím about to start reloading for my grendel and this is the powder I plan on using. I think Iím going to try a 100gr nosler accubond bullet and work up from there.
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Old 03-03-2018, 07:54 AM   #22
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I’m about to start this as well. I sure hope I can get a load that works better than the factory Hornady Black. It was a 4-5” @100 yards rounds. And it really didn’t like my can. Not a can problem, as the same can shoots 1/2 moa in my creed.
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Old 03-03-2018, 08:01 AM   #23
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Iím about to start this as well. I sure hope I can get a load that works better than the factory Hornady Black. It was a 4-5Ē @100 yards rounds. And it really didnít like my can. Not a can problem, as the same can shoots 1/2 moa in my creed.
4-5 MOA in a Gren at 100 is usually an issue with the gun.

Who built it?
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Old 03-03-2018, 08:10 AM   #24
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H335 27.5 2429
Benchmark 26.4 2376 (for apples to apples with 120 ttsx like the others)

Benchmark with 120 smk 27.5 2412
For reference, cfe223 with 120 smk 31.6 2512 max

The seating depth of the two bullets is a little more than 0.1 inch different, which explains the difference.

Again, theoretical loads for entertainment purposes, donít try this at home.
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Old 03-03-2018, 08:15 AM   #25
Outbreaker
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Originally Posted by Balcones_Walker View Post
H335 27.5 2429
Benchmark 26.4 2376 (for apples to apples with 120 ttsx like the others)

Benchmark with 120 smk 27.5 2412
For reference, cfe223 with 120 smk 31.6 2512 max

The seating depth of the two bullets is a little more than 0.1 inch different, which explains the difference.

Again, theoretical loads for entertainment purposes, donít try this at home.
Thanks I was going to top out at 27.5 and you confirmed it. Still going to shoot a safety ladder. I will post what I get.

Benchmark is not as forgiving as CFE. It tends to go BOOM (breaking bolts) with no pressure signs on the brass in the Grendel.
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Old 03-03-2018, 08:41 AM   #26
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Quote:
Originally Posted by Outbreaker View Post
4-5 MOA in a Gren at 100 is usually an issue with the gun.

Who built it?
I did. Not my first one. Never had any issue in the past but Iím about to tear into it.
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Old 03-03-2018, 08:51 AM   #27
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I did. Not my first one. Never had any issue in the past but Iím about to tear into it.
What barrel?
Did you bed the barrel and gas block?
Everything torqued to spec?
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Old 03-03-2018, 09:57 AM   #28
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Bear Creek Arsenal barrel from Primary Arms. I did not bed it. Never been necessary before. How are you doing that?
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Old 03-03-2018, 10:02 AM   #29
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Bear Creek Arsenal barrel from Primary Arms. I did not bed it. Never been necessary before. How are you doing that?
I need to edit the video I recorded to show how. I use loctite 620. Degrease (denatured alcohol) then put on the barrel extension and the receiver and the excess will squeeze out. Clean up any that comes out. I do this on every barrel and gas block. It adds about $2 to the cost and 10 min to the build. No down side and massive upside. I also do the gas block. Even my match grade $600 barrels get this treatment.

Once it sets you can take off the barrel nut and the barrel will not move without a heat gun. Not even a 1/64 of an inch on a 20" barrel.

BCA barrels are known for accuracy issues with some of the barrels. It seems 25% are horrible, 50% are acceptable, and 25% are good.
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Old 03-03-2018, 07:28 PM   #30
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Quote:
Originally Posted by bearintex View Post
Bear Creek Arsenal barrel from Primary Arms. I did not bed it. Never been necessary before. How are you doing that?


Iíll second some of the horror stories from BCA. Not all bad but many seem to be. It seems if the Hornady Black ammo doesnít shoot there is something else wrong as stated before.


Sierracharlie outÖ
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Old 03-03-2018, 07:32 PM   #31
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My BCA barrel was a 3-4 moa barrel until I had about 65 rounds through it. Now it's a tack driver. Some shoot good, some don't. Lol

Sent from my SAMSUNG-SM-G891A using Tapatalk
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Old 03-03-2018, 07:54 PM   #32
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Quote:
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Iím about to start this as well. I sure hope I can get a load that works better than the factory Hornady Black. It was a 4-5Ē @100 yards rounds. And it really didnít like my can. Not a can problem, as the same can shoots 1/2 moa in my creed.
Try the hornady custom SST. My Grendel didnít like the hornady black either and was shooting 3-4Ē groups. SSTís are shooting around and 1Ē or so
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Old 03-03-2018, 08:20 PM   #33
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My Grendel was about 1.5" with black. I hand load and can get .5" if I do my part.
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Old 03-03-2018, 08:33 PM   #34
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My Grendel loves hornady black . RF 20Ē stainless barrel
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