6.5 Grendel or 308?

[ray1970]

Yeah, I know... two separate beasts and two different platforms.

Anyhow, I recently acquired a trigger that is just begging to go into a precision type AR platform rifle. Since everything I currently have in the AR flavor is more "tactical" than "precision" I guess that means I need to assemble another rifle so the trigger will have a decent home. So....

I have a 308 lower sitting in the safe that I really didn't intend to do anything with. The thought of building it out to put the trigger in crossed my mind. But part of me still doesn't really want to build an AR10 platform rifle.

So, since I've never had a 6.5 Grendel, that got me to thinking that maybe that might be the route to go.

Honestly, I'm not sure what to put together. It probably won't ever get shot beyond 600 yards or so, my shoulders are jacked up so I'm a bit recoil sensitive when it comes to rifles, and I don't really want another rifle in 5.56/.223.

Just brainstorming on a public forum. Thanks.

[Jefe's AR]

.308 AR10 16" mid length or 18" rifle length. The buffer helps and the shorter dwell helps tremendously with recoil. I shot a 18" mid and a 16" mid and the 16" mid was just enough difference for me to really like it. The 18" mid started to make me flinch after 60 or so rounds. The 16" mid I could shoot all day with no issue. For me, it hits just right.

[ray1970]

Thanks. And thanks for the advice in my other thread about the shotgun stocks as well.

I'm not sure I'd want to go with a 16" barrel in 308. I was thinking 18 at minimum and probably leaning towards a 20".

[Erni]

Ray, the 16" is not too bad, balistics aside. Let me know if you want to run my 16" FAL to get a feel for one.

[ray1970]

The FAL and I don't get along. I had one. A "paratrooper" in fact. If you crowd up on the rear sight, it will bite you right in the lens of your favorite sunglasses.

I just figure if I'm going to be shooting a 308 I should at least get whatever velocity I can get.

[brutal]

A muzzle brake and/or brake/suppressor setup will tame the .308 immensely.

My Sig716P was pretty brutal until I muzzled it.

[Erni]

I know what you mean on the para fal. Same issue here, thinking about lengthening the stock.

[Great-Kazoo]

The FAL and I don't get along. I had one. A "paratrooper" in fact. If you crowd up on the rear sight, it will bite you right in the lens of your favorite sunglasses.

I just figure if I'm going to be shooting a 308 I should at least get whatever velocity I can get.


Sounds like it's time to build a bolt action.

[hghclsswhitetrsh]

You need to talk to AKA-spook. The possibilities are endless.

[Colohunter]

You could always split the difference, use the 308 lower and still build a 6.5mm, something like a 6.5 Creedmoor or 260 Remington. Gives you the extra performance from the larger case, with the better trajectory of the 6.5mm bullets.

[ray1970]

I still have mixed feelings about building anything on the AR10 platform. They are becoming more popular by the day but the fact that there really isn't a "standard" kind of bothers me. At least if I build a Grendel on the AR15 platform just about everything is normal parts except the barrel, bolt, and magazines.

[Delfuego]

6.5 Creedmore. Hands down. It is a great cartridge, works good in large frame AR's, components and off the shelf ammo are available. with a good muzzle break and maybe a little tuning to the gas/carrier system it can be a kitten to shoot. It also has all the get-up-and-go that you want in a LR cartridge. No contest with the grendal.
The grendal is kind of a dying cartridge, nobody really uses it (my opinion). 6.8 tried to replace it, that didn't happen either. I know a few people (including a very famous Mod here) that are running a 6mm grendal (or similar) because it is ballistacally better in a small frame AR. The grendal just doesn't have enough powder to get the 6.5 moving like you to want it to. I have been toying with the idea of a 6mm AR, but am going to wait until the cool kids come back with some more info, I don't like to be the early adopter...

[davsel]

Couple of articles on the 6.5 Grendal - looks interesting.

http://www.gunblast.com/AlexanderArms_65Grendel.htm
http://www.gunblast.com/65Grendel.htm

[Hoser]

I have a 6 Grendel, aka 6AR/6 PPC in an AR-15 and am very happy. Scary accurate and dead nuts reliable. Forum member AKA Spook built it for me.

The 6.5 Grendel does not interest me for some reason.

[ray1970]

Hmm. The 6mm sounds interesting. I'll have to do a little research. Thanks, Hoser.

[AKA-Spook]

Ray I have a 6.5 upper built, if you can figure out a way and place ... you can mess with it and see how you like it.

http://i.imgur.com/M6bZAzK.jpg

I made the barrel a few years back and had it in the classifieds , no takers so I assembled an upper out of it, shoots very nicely.

[ray1970]

Thanks. I'm fairly certain I've put a few rounds through another member's Grendel so I'm not totally unfamiliar with them.

Honestly, I pretty much never shoot past about 500 yards. I was even kicking around the idea of maybe a 6.8 SPC.

[MarkCO]

16" mid-gas is what got me to liking the .308 pattern AR. 600 yards is no problem.

Not a huge fan of the 6.5G or the 6.8SPC. While people claim there are no issues with them, it seems everytime I see people shooting them, there are issues.

I went with a 6.5PCC. .223 brass trimmed and sized (easy to do) and a barrel is all. Runs every AR magazine there is. I shoot from 95 to 123 grains and it runs like a top. The 6-.223 is a similar animal. Less cost, less finicky makes me smile.