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View Full Version : 6.5 Grendel: What is it good for?


Dreaded Claymore
06-20-2010, 4:13 PM
Warning: Noob thread.

Glancing at it, 6.5mm Grendel looks like a huge bullet with a lot less powder than 5.56x45mm. It seems like that would be harder to use accurately than 5.56, and not cause much more damage (high mass + low velocity = low mass + high velocity).

What was 6.5mm Grendel designed to do?

toby
06-20-2010, 4:57 PM
it is a 6.5 so it's got a big B.C and S.D so it makes a great long range round or a good hunting round with low recoil.

Notblake
06-20-2010, 5:16 PM
It's for guys who have too much money and are bored with all the military rifle calibers and want to make guys like me really jealous of their nice rifles!










.... Jerks....

:D

KillZone45
06-20-2010, 5:22 PM
From the research I have done, a lot of the SF guys were complaining that the .223/5.56 round wasn't doing the job. So an alternative was put into testing and what came about was the 6.8spc and the 6.5grendel, these calibers are similar to the .223/5.56 and were partly designed to retrofit into the m-16/m-4 rifle. Supposed to have more killing power with similar recoil. This is just what I got out of it, so don't take this as truth, just what I found out.

CavTrooper
06-20-2010, 5:22 PM
Accurate round, bigger caliber, longer range, still on standard AR lower.

cowboyup
06-20-2010, 6:34 PM
Killing hogs n deer.

1988
06-20-2010, 9:04 PM
Achieving the long range capability of the .308 round, using the AR-15 platform.

slappomatt
06-20-2010, 9:22 PM
I have a buddy who just built one and its awesome. I have a 18" SPR style ar in .223 with all the bells and whistles. Its a pretty good shooter and has a 18X scope and jewell trigger. My buddies 6.5 grendel blows it away at 430yrd where we were shooting at a swing target. He has a 24" upper with 10X scope and factory 75lb trigger. I'm sold. It shoots almost as well as my full custom 6mmBR bench gun.

Sniper3142
06-20-2010, 10:16 PM
The higher Ballistic Coeffient (BC) of the 6.5mm rounds are meant to optimize the long range performance available out of the AR15 platform.

It is slower than a .223/5.56mm round but not by that much. It is still plenty fast and will launch those rounds out to some impressive distances (1000 yards with the right round and a long enough barrel). The higher BC along with the greater Sectional Density (SD) also help it resist being pushed around by the wind as kuch as a .223/5.56 will be.

And it also delivers more energy to the target than the .223/5.56 does.

The DRis
06-20-2010, 10:19 PM
My buddies 6.5 grendel blows it away at 430yrd where we were shooting at a swing target. He has a 24" upper with 10X scope and factory 75lb trigger. I'm sold. It shoots almost as well as my full custom 6mmBR bench gun.

75lb trigger? Good lord!! His forearms must be massive?! Does that mean he doesn't need a safety?

bjl333
06-20-2010, 11:13 PM
^ Noooooo .... just the muscle that controls the index finger !! Good point on the safety, maybe I should try it as well ....

skylovia
06-20-2010, 11:41 PM
"absolutely nothin'":D

tenpercentfirearms
06-21-2010, 6:56 AM
The ballistics and performance of the 6.5 Grendel far outweigh the 5.56mm. You are pushing a 120 grain bullet just slightly slower than the 5.56mm.

Bar none my new Sabre Defence 6.5 Grendel 24" Heavy Bench Upper is the most accurate AR I have. And with plenty of 120 grain non-lead hunting bullets, it will be my coyote killer. Heck I might even shoot a deer with it if I get a chance while road hunting. I definitely won't be hiking with it.

KillZone45
06-21-2010, 4:53 PM
So what is everyone's consensus about which round NATO might adopt in the future? The 6.5 or the 6.8?

Dhena81
06-21-2010, 5:06 PM
6.5 has more range and flatter trajectory than the 6.8. Personally I would chose the 6.5.

1988
06-21-2010, 5:22 PM
So what is everyone's consensus about which round NATO might adopt in the future? The 6.5 or the 6.8?

Thread jacking ?

jmancini
06-21-2010, 5:30 PM
So what is everyone's consensus about which round NATO might adopt in the future? The 6.5 or the 6.8?

Not likely either, since 77gr 5.56 is proving very effective...

toby
06-21-2010, 6:22 PM
Tried and true=308 why not?

rabagley
06-21-2010, 6:40 PM
Tried and true=308 why not?

If you make an LMG from 6.8 SPC or 6.5 Grendel instead of .308, you can carry 2x the number of rounds. With 6.5 Grendel, you get basically the same range and most of the penetration capability. With 6.8 SPC, you get basically the same penetration close-in but substantially less range than .308.

Basically, .308 is a combat 30-06, both of which are fine rounds right up until you have to carry a lot of them. Then other calibers become more capable depending on your mission-specific requirements.

C.G.
06-21-2010, 8:41 PM
Not likely either, since 77gr 5.56 is proving very effective...

+1, and no cost for new mags, uppers, etc.

stormy_clothing
06-21-2010, 11:08 PM
62g steel core ammo is fun stuff and the world is neck deep in 556 no reason to switch.

The next probably jump will be in ammo more like to reactive metal rounds since they have already layed the groundwork for it legally.

Dreaded Claymore
06-24-2010, 2:22 PM
62g steel core ammo is fun stuff and the world is neck deep in 556 no reason to switch.

The next probably jump will be in ammo more like to reactive metal rounds since they have already layed the groundwork for it legally.

What are these? They sound cool.