Why did, or will you choose the 6.8?

[phoenixtac]

I'm currently doing my D.D. on the 6.8 SPC Cartridge, do any of you have experience shooting, or testing the cartridge?
What would you consider it's maximum range, and how are the groups at that range?
Lastly...what length barrels did you shoot it with, and velocities recorded?
That about sum's it up, and thank you for the information in advance.

[Harv]

I can barely afford to shoot the amount of 5.56MM I like... for me switching to 6.8MM just ain't happening... would make it even more expensive.

Just my take

[TimP]

The main reason I decided to go with a 6.8 is because of its size, and even that is two fold.
1: Its bigger than a 223/556
2: It still fits in a 223 sized AR-15

The 6.8 is just a neat caliber. It gives me the same traj as a 77gr 223 and a 308 168gr SMK. So its range is just as good as a 38, to an extent.

So the 6.8 will have pretty much the same range as a 223, it will just hit harder. Though if you handload a SMK fairly hot, I think you might get a better traj than a 223.

My gun was built by Grant.
16.1 Noveske brl
Troy 12.0
With Rem OTM ammo I am getting right at 1.25MOA @ 100 yards with it. Handloads will get better than that. The recoil is subjective. My gun has a vortex fh, but I am going to swap it out for a MSTN brake. The recoil isnt bad, not much more than the 223, I just want to stop the muzzle rise.

http://coloradomultigun.com/misc/sgn_68spc.pdf

that link will tell you pretty much everything you want to know.

[phoenixtac]

Thanks for the info so far, I will read the link when I get more time.

[Stephen_H]

More retained energy downrange in the same sized weapon as 5.56mm. It's that simple. I give up three rounds in the mag and a negligable increase in recoil. At the rate 5.56mm ammo is increasing in price, it's not that much more expensive to shoot 6.8mm SPC (apples to apples; you're not going to find surplus 6.8mm).

Stephen

[Sean King]

A better BC (than 5.56) out of a short bbl. That's my reason (10.3" bbl).

Sean