anyone running these in an AR platform? Interested to hear results
thanks

I had a 6BRX for a while.  Sold it when I got orders to MD.  I was getting Creedmore velocities out of an AR15 with it.  Took a lot of work to get it to work though.  The Grendel and Creedmore would be much easier as the legwork on getting them running has already been done by others.

6.5 Grendel owner. Built one back in 2011. The advantage to the Grendel is your still on the AR-15 chassis.

Running a Grendel with a 24" Bartlein Barrel - first time stretching its legs shooting at 200yards for groups , using 130gr ELD-M's at 2580fps - loving it - they shoot most things well , reloads easy , simple to get a good load , some bullets shoot better at distance than at 100y, using this load was also hitting steel at 500 with zero effort.

like the Grendel but would love to push a 6mm out of it in the AR platform just wondering if anyone has done it.

nice shooting btw

Several .243 wildcats out there

6mm Turbo (not the Turbo 40*) below. Looks pretty wicked 40* even moreso

pretty sure I am going down the 6.5 creedmoor route
burn the barrel out then on to the 6 creedmoor

I'm building a 6mm Grendel.  Last part, the handguard, arrives tomorrow.

My 6mm fat rat space gun upper should be here tomorrow.  I'm hoping to be able to launch that new 110 SMK about 2750-2800 fps, or maybe even a little faster.  

I also ordered a whidden hydro sizing die, so I wouldn't need to waste barrel life fireforming.  

Why did u sell it because u were getting stationed in md?  ar's are legal

I still have a ton of ARs, but nowhere to shoot one past 1,000 yards, so I sold it to someone that could realize its potential.  I get out of MD in a few months, I'll get back into long range then.

Guess it depends if you want a AR15/AR10 platform.

I have a  243LBC (6mm Grendel that uses a 762x39 bolt) and while I’ve only shot a handful of rounds through it (LabRadar wasn’t happy) I like it.

It’s a Black Hole Weaponry barrel in a cheap side charging Bear Creek Aresnal upper. I paid full price and waited months for the barrel. You should snag this BHW barrel from their retail site (with 25% off coupon) before I do. 243 LBC barrel

I’m going to build a 6mm Creedmoor too but haven’t decided on a Aero M5 or a Chassis rifle of some sort.

I have a 6 Grendel and am very happy with it.

I can easily push 105 Bergers to 2650 out of a 22 inch barrel.

The Grendel is on either the AR15 platform, or on the slightly larger Mutant platform.  Most people build on the Ar15 platform, and that is what the Grendels I owned were built on.  If you are going to be shooting longer distances, or need greater wind bucking ability, you might want to step up to the Creedmoor size rounds in the AR10 size action (I know that some people get their feathers ruffled if anything other than a Knights action is called an AR10..but that is a different discussion).

The Grendel is more of a mid size round for velocities around 2500-2600 fps with a 123 grain bullet.

It depends on how far you will be shooting, and how much energy you want to put onto the target at distance.  Too many people try to get too much performance out of the Grendel and end up breaking bolts, blowing primers, or otherwise asking an unrealistic performance level out of the Grendel.

I think for many practical rifle matches out to 800-1000 yards, the Grendel will be a great round as it has less recoil than the Creedmoor, and hits plates with sufficient energy for the hits to be called.  Additionally, if you reload, the Grendel will use less powder.

I really like both cartridges.  If I were going to build a rifle today, I would probably build a Grendel using the Mutant platform, mostly because I have already owned a number of Grendels on the Ar15 platform, and want to try something new.

Good shooting! I'm reading up on the Grendel right now and liking what I'm seeing. If I put the numbers in correctly. Your bullet should be able to
drop hogs out to around 350 yards with around 1200 foot lbs of energy!

6 Creedmoor bolt gun or 6 Creedmoor gas gun velocities? If gas gun, that’s believable because it has to be neutered to run. I starting seeing issues above 2900 and way too hot at 2960 with all JP parts.

My 6 Creedmoor bolt gun can push 3200 at will with 105 Bergers.

Same bullets, 105 Bergers, I was getting around 3,000-3,050fps.  22" Kreiger barrel with a Big Bolt and matching extension from the company that can't be named.

Wow, I may have to give that a try. The 6CM was miserable to run in a large frame. Going to a small frame would solve a lot of the problems I had.

Can you send me info on what/where you got your parts? I have a rifle build collecting dust, just needs a barrel.

My last build was a 6mm grendel clone - 6mmAR, 243 LBC, ect. I'm hitting 2900 fps easily with 90 gr sierras. It shoots a little bit flatter than my favorite 6.5 creed load with 143 eld-x in my bolt gun.

Obviously, large frame vs small frame is a decision you'll have to make, but I'm really happy with the performance in a small frame. That said, my next build is probably gonna be a 6 creed.

How long of a barrel?  I've got a 20" on the way.

Would you mind sharing some load info?

Mine is 20" as well. So far I've only used 90 and 95 bullets and H4895 and 8208XBR. The 4895 has seemed a little more pressure spikey than the 8208. My preferred 4895 and 90gr load is 28.4, and after early testing, it looks like 8208 will be right about there too. The 8208 is about 50 fps slower though.

Normal start low and work up warnings apply, obviously.

The guys at the BHW forum say you can use upper loads for 6ppc as a starting point and lower end stuff for the 6 rem (I think) for upper limits. I just ordered some 58 gr varmint bullets and I'm gonna try that. Lee says start at about 30gr 8208 based on the 6ppc.

I have 6.5's in Grendel and Creedmoor.  I also have a 6mm Creedmoor.  They are all great,  but my favorite is 6.5 Creedmoor and second is a toss up between the 6mm Creedmoor or the Grendel.

The 6mm Creedmoor has been more finicky. Adjustable gas block,  SCS buffer in H2 config and finally swapping the bolt to a JP HP bolt it's running like a clock. The 6.5 Creedmoor is the same,  with the exception of the bolt.   I've really enjoyed the 6mm Creedmoor caliber from the beginning.  Velocities are good (~2950-3000 FPS using 108 gr ELD Match projectiles) and groups are great. Sub MOA is not a problem. Shooting suppressed is great as well. With that rifle now running the way it is I can see it in contention for the favorite spot.

What’s the desired intentions of the rifle? It’ll be a lot easier to advise with a little more information