Question number one, does it use the same BCG as a 556 AR?
2 Ballistics what does it compare to?
3 PSA has an upper on sale for $299 should I get it to use for deer and pigs? I already have a 556 AR but really wanting a bigger caliber.

Carrier? Yes

Bolt? No



gets you kinda close to a hypothetical .277-.308 wildcat

My take on it is that the 6.8SPC and 6.5Grendel are, far and away, the most capable intermediate cartridges to ever get SAAMI approval. 6.8 gets the nod for <=18, 6.5 >=20", pick your preference in between.



I can't speak to the quality of a PSA 6.8 barrel, and have no idea who makes them (edit: unless they say CHF -- then it's FN). My standard recommendation would be ARPerformance barrels for price/performance. Get the bolt from them too.

It's said that 6.8 SPC is a really great whitetail round. - About right for that.

If it's good for whitetails, then it ought to be just fine for pigs.

I'd go for it.

Great round for a 16" barrel and hunting out to 300 yards..
Deer and pigs both..
Shot a LOT of them with one.
Love the round in an a lightweight AR15

6.8 is my go to pig round. No problem puttin em on the ground! I downed 2 with 1 shot in November with a nosler.

My 6.8 has whacked a lot of pigs up to 200#. With that said I wouldn't hesitate on a WT under 200 yards.

You'll need a different bolt for the 6.8, the carrier is the same.

I like my 6.8, have only shot 1 pig so far, but it was 200lb and it dropped her where she stood. I went with a 16" ARP barrel. I'm getting 2450 fps or so with 120 SST factory rounds, which is all I've shot thru it so far.

For comparison, I'm getting 2525 or so out of a 20" Grendel with 123 SST. So I'm pleased with the 16" 6.8 velocity wise with the factory Hornady stuff, I've yet to hand load for it but will at some point.

Now Im debating 300 AAC, seems alot easier to get into then a 6.8. Just need a different barrel then your good to go. What say yall about the 300 AAC I would be less then 150 yards.

The 6.8 SPC is much better for deer.

300 AAC makes a .300 Savage look like a magnum, it's developed to shoot heavy bullets through a suppressor at subsonic velocity. - A real POS as far as big game hunting goes.

I shot a buck with a 300 blackout at 100 yards this season. 110g bullet and it killed the deer just fine. I was using an AR15 with an 8.2" barrel and a suppressor.

It's pointless unless you shoot it suppressed.

I killed a doe with my .300blk this weekend. She was broadside at 100 yards, shot was textbook double lung and she went about 60 yards before piling up. The bullet center punched a rib on entrance and exit leaving a nice size entrance and exit wound and lots of blood. I was shooting the 110gr Barnes bullet and was impressed with it's performance. I'd have NO problem using it as a deer/hog cartridge to 150 yards.


.

6.8 dropped this hog at 200 yards

I have no idea how many pigs and deer I have killed with a 6.8
here are a few

close range pig on the run


buck at 285 yards



fallow cull at 150

How's about you expand a little bit on this gem... got some factual basis to back this up, or just repeating stuff you read on the internet?


I will admit that 300blk works great when paired with a suppressor no doubt, but it is far from pointless un-suppressed. It offers a little more knockdown power than a standard 556, with more affordable ammo than 6.8, and can be utilized with most of the same equipment. I'm not saying it's better than 6.8.... in fact, there's lots of times when I think 6.8 is a better choice, but to say it's useless without a suppressor is just silly.

Any point you were trying to make was invalidated once you brought up knock down power. There's no such thing in the sense you're thinking. Do you even Newton's 3rd Law?

That's before you get to the pathetic ballistics of the rather pointless 300 blk.

So you are saying that you read it somewhere and regurgitated what someone else made you believe. You have no experience or reasoning of your own to back up your claim.
A 300 blackout is perfectly capable of bringing down a whitetail or a pig within 150 yards like the OP wants to do. Lots of people use a 300 blk on deer and pigs. The 300 blk also has more bullet options than the 6.8. 6.8 is offered in 90g to 120g. 300 blk is available in 110g to 230g. And IF someone making the decision between these two guns got into reloading, what's easier to find, 6.8 bullets or .308 bullets?

Yes, I'm stating exactly that. Come on man, don't be so feeble minded. It's annoying.

It's not a claim. It's a fact. This isn't something that can be argued.

All you need to look at is a ballistic chart. It sucks compared to other .308 caliber rounds. It sucks compared to a lot of different calibers. It has outrageous drop and low velocity. The only area it doesn't suck in is shooting suppressed .308 rounds. You simply cannot refute that. There's no brainwashing taking place. All you really have to do is be able to read a chart and know what the numbers mean.

You're aware 6.8 bullets are .270 Win bullets right? They're just as available as .308.

It really blows my mind that people claim this round is great when concrete empirical data shows the opposite. It's like claiming a car with half the hp of the field is the best car for a NASCAR race.

And 6.8 is inferior to a 6.5 Creed, .308 Nato, 7mag, 300mag, 30-06, etc. But just like a 300 blk, they will all kill a deer and a pig at 150 yards. THAT is a fact. What you wrote is an opinion. Who cares if it's not as flat of a bullet? If the shooter knows the trajectory, then they can put it where it needs to go. A guy on this forum videoed a 1000 yard shot with a 300blk.
Do you need a NASCRAP car to drive to the grocery store? The average car that will do the job is far inferior empirically to a NASCRAP car. So why would anyone drive a regular car to the store? We should all only drive race cars because it looks better on paper.

6.8 is inferior but I don't act like it's something it's not. It serves a purpose as an intermediate caliber while 300 blk is pointless for anything other than suppressed use.

What I said is a fact though. Horrible ballistics = crappy round. To further answer your question about reloading (thus making you look worse), 6.8 is a better choice for reloading. Brass is more plentiful.

Comes in 85 gr RRLP and 85 gr TSX gr as well. the 6.8

85 gr TSX 2920/1614- TSX Tactical 3000/1708
85 gr RRLP 2828/1509

Go spend about 30 minutes on 68forums. Alot of good info there also.

Where the 300 really shines is in an SBR
You get full powder burn out of a 9" barrel.

The 6.8 needs 12.5, 16" is great and there is no real gain in velocity with a longer barrel.

6.5 Grendel shines with at least a 20" (24 optimal) barrel and shooting long range.


I have a ton of confidence in the 6.8 out to 300 yards.
It's effective range for reliable bullet expansion is closer to 400 but the scooe I like to run doesnt dial or have a reticle for hold overs.

I am on the fence about turning it into an SBR.

I dont want to nueter it's performance.

I had a Noveske 6.8 SBR upper a while back. I hated to part with it but the offer was one i couldn't refuse. I wish i would have done some velocity testing with it.

At the time there wernt many ammo options. I may end up scrapping the 556 build and go back to 6.8. I loved that round.

12.5?
They are one of the only ones doing a 12.5
My rifle is a Wilson Combat with the lightweight 16
with handloads of 95g TTSX I get 2850
Been running the factory Hornady 120 SST because it shoots well and hammers game and I can get it for free..
Barnes bullets I get free too but I have to handload, time is tight these days

Wilson doesn't do a 12.5, it's an 11.3 if I recall correctly, probably insignifant but by all accounts 12.5 is optimal for SBR in a 6.8
It would be a nice setup with my short 5" Templar ti can.