AR15 6.5 Grendel

[Texas by God]

I'm gathering parts for a 6.5 Gendel assembuildy. Does anyone here have experience with this cartridge? I'm not planning on boolit use since I have CB friendly rifles aplenty. I'm using a 20" barrel, the main use will be stand hunting and target. Advice welcome.
Thanks,
Thomas

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[Time Killer]

No experience personally. Best Grendle test site I have seen is Johnny's Reloading bench on you tube. https://www.youtube.com/channel/UCQ7ZytKrmCQnRp9LXXxinJQ

[shortlegs]

I just put my ar grendel together but havent shot it yet. Hopefully I can shoot it this weekend.I have an Odin barrel. I was able to shoot one earlier this year and was very impressed with the Odin barrel. We zeroed the scope at 100 yd and I was able to hit a 7.5x9.5 target at 300yd 5 shots in a row with hornady black ammo. his scope had a 223 drop plex that was right on with that ammo. I will let you know how mine does at the range.

[derek45]

Yes.
I built one with a 16" FAXON barrel and brownells bolt/carrier.
It's a lot of fun.

It runs fine with my old 6.8SPC mags
https://i.imgur.com/9bBgwjc.jpg
https://i.imgur.com/oZQk6ZY.jpg
https://i.imgur.com/MgFWTYw.jpg
https://i.imgur.com/tkTEIBN.jpg

[Texas by God]

That's encouraging to say the least! Derek45 I have to ask- how does the Wolf ammo shoot? You mount your scope forward as I prefer, too. Great shooting.

[derek45]

That's encouraging to say the least! Derek45 I have to ask- how does the Wolf ammo shoot? You mount your scope forward as I prefer, too. Great shooting.

I mostly used the wolf garbage to test function and break it in,...it shoots better than I expected.

107gr SIERRA Match and IMR 8208 works well

thanks

[Rcmaveric]

Noe make a 6.5m mold for the Grendel. Get barrel with twist rate of 9 or 10.

H4895, and reloader 7 and 4198 are all good powders to choose.

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[Texas by God]

Wolf is very good "break in" ammo IMO. I have the 1-8" barrel in hand already. My .30 Carbine satisfies my boolits habit for a semi auto; my 1-7" .300 BO hasn't shown any promise with CB so I doubt I'll try cast in the Grendel at all. 30-30, 8x57mm, 38-55, and 44-40 work so well with cast for me that I'm not looking to aggravate myself at all. Derek, I've already entered your 107gr Sierra load in my notebook! Thanks for the replies; keep them coming.
Thomas

[Rcmaveric]

Been shooting cast bullets in the Grendel for several years now and all i really ever shot in them. My old barrel was a custom Blackhole weaponry barrel with a 1 in 9 twist that shot nickle sized or better with cast at 2000fps. Saddly accidents happen and that is a paper weight now do to safety issues. Slapped to gether a bargain barn new grendel upper with cheap midway special barrel. It has a 1 in 8.5 twist and my velocity is about 1550 fps with about an average 1.5 moa. Some days gooder some days worser. Well pleased and happy with the fun gun.

With a 1 in 8 twist barrel i cant get accuracy above 1400 fps. With that 1 in 7 on your BO i would be surprised if you could get over 1200fps. Might want to try shooting a big ole cast bullet at 1200 fps and see what happens. With the way i have been seeing accuracy and velocity nodes in my own guns there is a definate pattern. I am saving now to order a custom Grendel Barrel from Krieger with a 1 in 11 twist. I want to build a nice Grendel for 200+ yard shooting and hunting. Then i am going to build a wolverine. Wolverine barrels are all ready offered in 1 in 11 twist. My gut tells me i can hit 2400fps with a 1 in 10 or 1 in 11 twist barrel.

But, in case that fails, I did the calcs and a 1 in 11 Grendel barrel will adequately stabilize my NOE 6.5 Grendel bullets at about 1600 fps in case my goal of 2400fps fails.

I am going to rebarrel all my guns yo the slowest twist rate i need to stabilize my bullets at 1600 fps. Its suprising how we are using so much twist.

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[Earlwb]

I built up a 6.5 Grendel from parts using a 24 inch barrel, a side charging upper, A2 rifle buttstock. etc. I put on a 6x24 scope as well. But I never thought about shooting cast bullets in it. I have a couple of bullet molds, I might have to give that a try later. Anyway, it seems to shoot just fine. But I have only used it to poke holes in targets so far.

232096

232097

[DCM]

Satern/Liberty barrels shoot extremely well IME especially in this caliber. What do you plan on hunting with it?

Will post pics of the 0.33MOA group from the Libety 6.5G barrel later.

[Texas by God]

Deer. Pigs, coyotes and other varmints. I'm sure it will end up heavy so it won't be used for still hunting or stalking. In the blind watching the feeder will be it's forte. As with all AR15 cartridges, it's "almost" something else- in this case a .250 Savage- so I think it will be great.

[rockrat]

I have a 24" barreled HBAR weight barreled upper and a heavy varmint barreled upper from Model 1 sales. Bought the Model 1 upper new, at a gunshow, cheap, figuring I could turn it, but no luck. Good think I couldn't as started shooting it and Benchmark and 90gr Speer bullet cluster into tiny groups with holes touching! Pretty accurate considering the poor trigger on the gun and the trigger pullee

[Moonie]

My son has a 6.5 Grendel he bought from a coworker that was also his Sgt in the Marine Corps. He had it built for competition, with the 6x fixed scope it will print clover leafs at 100 yards, I did so the first time I shot it, 3 rounds all touching, less than the size of a dime. I was impressed.

[Texas by God]

Model 1 Sales barrels are from ER Shaw. I have tried for years to get them to sell just a barrel; but no dice.

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[Bohica793]

I have a Radical 24" Grendel I built that shoots sub MOA out to 300 with factory Hornady 123gr. Awesome round.

[DCM]

https://www.dropbox.com/s/3n3q261hv9af0tv/6.5%20Gren.jpg

3 shot 6.5 Grendel 100yard group from 18 inch Satern/Liberty barrel.

[Rcmaveric]

My blackhole weaponry barrel was sub moa with cast bullets. My Satern barrel is good enough for plinking and hunting inside 100 yards. Krieger said they would make me a custom AR barrel.

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[Texas by God]

The parts pile is growing.https://uploads.tapatalk-cdn.com/20181222/cff1d01d7004c60d7f501cad5f09d49b.jpg

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[Rcmaveric]

That reminds me.... i need to buy a vice soon. After building a few ARs and plan on building two more. I thinks it times i get one. Sneaking the one at work probably isnt wise.

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[Earlwb]

The parts pile is growing.https://uploads.tapatalk-cdn.com/20181222/cff1d01d7004c60d7f501cad5f09d49b.jpg

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Looking good so far.

[DCM]

looks like all you need is one of these.
https://palmettostatearmory.com/palmetto-state-armory-classic-lower-build-kit-without-fire-control-group.html
and a bolt carrier goup.

[Rcmaveric]

Get the Grendel 2 or 7.62x39 bolt.

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[worker]

Most get the proper Grendel bolt , so called Type II bolt (not the 7.62x39 bolt)

Type 2 Bolt has a .136 head spacing
Type 1 bolt or 7.62×39 with a .125 head spacing.

https://www.maximfirearms.com/online-store/complete-6-5-grendel-bolt/


I am still in process building the g 6.5 (eventually) -- but I was strongly advised against the x39 bolt.






Get the Grendel 2 or 7.62x39 bolt.

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[shortlegs]

Finally made it to the range with my grendel. 5 shots touching @100 and 3" group at 300 on steel target. I am using 120 gr PPU bthp bullet over 30 gr of CFE223 with cci 450 primer in new Hornady cases.

[Texas by God]

Finally made it to the range with my grendel. 5 shots touching @100 and 3" group at 300 on steel target. I am using 120 gr PPU bthp bullet over 30 gr of CFE223 with cci 450 primer in new Hornady cases.
Music to my ears. I've been eyeballing those PPU bullets.

[Texas by God]

looks like all you need is one of these.
https://palmettostatearmory.com/palmetto-state-armory-classic-lower-build-kit-without-fire-control-group.html
and a bolt carrier goup.The completing parts are at the house now and I'm at the lease[emoji3]

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[Texas by God]

I MUST replace the trigger. Fighting it and the fading light, I put 5 Hornady Black 123 gr into 1-3/4" @100 Yds. The trigger is like crunchscrapecrunchcreepBANG! I don't get home from work early enough to shoot in good light this time of year-dang it. This is going to be fun I believe.

[Rcmaveric]

Pollish it up with a fine wet stone.

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[Texas by God]

Fired one shot, moved the scope down and shot 4 more. Hornady Black 123gr ELD. I must get dies and bullets because $25 for 20 shots is not my jam as my Millennial children would say.... 2" bull @ 100yds.https://uploads.tapatalk-cdn.com/20190111/6cc5b32a993d01c2f019149b693c7dd2.jpg

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[Rcmaveric]

When i first started shooting the Grendel it was 31 dollars per box. I quickly decided to reload for it.

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