20" 6.8 SPC upper receiver

[94StangFiveO]

I stalked around a hog hunt with my 20inch a2. Trust me man you want a 16inch and a collapsible stock. The a2 i found cumbersome getting in and out the truck. It kept snagging branches when ridding the 4 wheeler, along with walking down the game trails. 6.8 has plenty of knock down in a 16 inch. Might as well make the other aspects of hunting less annoying.

Good points. I'll definitely have a collapsible stock on it.

[bronco71]

i dont know about the 7.62x39 but very few parts have to change out if you want to change from a 6.8 to 5.56. Also the bullet selection on the 6.8 is starting to look pretty good, especially hunting rounds.

The 6.8 was designed around a 14.5" barrel for the special forces. Politics got in the way so the Army didnt pick it up like they said they would but its a great hunting round.

Choose your upper from that chart, its exactly what you need to know.

same parts to swap out; barrel bolt and mag...

not so much variety for 6.8 in factory loads but there is a lot of bullet choices if you handload since it is a .270 bullet

there are 5 different 6.8 chambers; advantage of the spec ll is only that you can shoot "tactical" factory loads (only loaded by SSA) and hotter handloads than the standard 6.8 chamber..... I have rarely found that the hottest load was the most accurate in any caliber.

also sucks trying to swing a long barrel in heavy brush....

[D. Lil]

LWRC 6.8mm

[94StangFiveO]

LWRC 6.8mm

A little bit higher than what I'm wanting to spend. Looks like I'll be going DI and not gas piston.

[Homemade]

OR, is there a better option based on what I want? I want to stay AR-15 platform but larger caliber than the .223 I have now. I also want something that isn't a caliber that is limited to hand loads only. As cool as some of those are I want to keep it simple. Any input guys?

http://www.midwayusa.com/viewProduct/default.aspx?productNumber=984785

http://www.ar15.com/forums/topic.html?b=7&f=22&t=850493

The 300 AAC Blackout is a .30 caliber bullet in a .223 case. So it uses everything from the standard AR; i.e. MAGS, bcg, upper parts, everything except the barrel is the same. Ammo is available, and not too expensive. Even suppressed it carries .45 caliber knock down out to 1000yds in a quiet package, or go with the supersonic bullet and get 7.62x 39 ballistics. Did I say the MAGS are the same. Go google it, from what I have read its the next up and coming AR variant.




http://noveskerifleworks.com/cgi-bin...since=&status=

If you are looking for something cheaper, build the upper and throw on the 300 barrel, with the right help assembling it you are looking at paying about the same as you would for a varmint Bull Barrel upper.

[94StangFiveO]

http://www.midwayusa.com/viewProduct...tNumber=984785

http://www.ar15.com/forums/topic.html?b=7&f=22&t=850493

The 300 AAC Blackout is a .30 caliber bullet in a .223 case. So it uses everything from the standard AR; i.e. MAGS, bcg, upper parts, everything except the barrel is the same. Ammo is available, and not too expensive. Even suppressed it carries .45 caliber knock down out to 1000yds in a quiet package, or go with the supersonic bullet and get 7.62x 39 ballistics. Did I say the MAGS are the same. Go google it, from what I have read its the next up and coming AR variant.




http://noveskerifleworks.com/cgi-bin...since=&status=

If you are looking for something cheaper, build the upper and throw on the 300 barrel, with the right help assembling it you are looking at paying about the same as you would for a varmint Bull Barrel upper.

I've barely read up on this. So, let's say I want to go with a chrome BCG, just buy one made for .223 and pop it in? This actually might be the way I want to go because I've been looking at .300 Whisper somewhat also but need to start reloading to familiarize myself with the processes of a hybrid caliber. I just dont want to be limited to handloads because if I want to run to the store and buy some roads or have them delivered in a few days, I'd like to have that option available.

Couldnt I just buy a barrel and build my own .300 based upper?

[Homemade]

I've barely read up on this. So, let's say I want to go with a chrome BCG, just buy one made for .223 and pop it in? This actually might be the way I want to go because I've been looking at .300 Whisper somewhat also but need to start reloading to familiarize myself with the processes of a hybrid caliber. I just dont want to be limited to handloads because if I want to run to the store and buy some roads or have them delivered in a few days, I'd like to have that option available.

Couldnt I just buy a barrel and build my own .300 based upper?

Yes on the build your own option. The group buy on upper parts coming soon should make that a very low cost option.

As for Ammo, Midway USA has both the subsonics and supers on back order (restock 5/8/2011)but I have read that Remington has commited to 5,000,000 rounds. check that link in my first post for the ammo. You wont have to reload unless you just want to, assuming you take a couple months building the upper.

Its really a barrel change. Thats it. I am a lefty so my build will be left without a bcg, and I will just toss my stag lefty bcg in it when i want to shoot it. It would be hard to use more than one BCG at any given time anyway.

For all practical purposes this is a whisper, just a couple mm different, i have heard that the rounds should be interchangeable. AR15.com has a 20 page posting since the 300 blk intro back in October of last year.

lots of youtube videos too

[94StangFiveO]

Yes on the build your own option. The group buy on upper parts coming soon should make that a very low cost option.

As for Ammo, Midway USA has both the subsonics and supers on back order but I have read that Remington has commited to 5,000,000 rounds. check that link in my first post for the ammo. You wont have to reload unless you just want to.

Its really a barrel change. Thats it. I am a lefty so my build will be left without a bcg, and I will just toss my stag lefty bcg in it when i want to shoot it. It would be hard to use more than one BCG at any given time anyway.

For all practical purposes this is a whisper, just a couple mm different, i have heard that the rounds should be interchangeable. AR15.com has a 20 page posting since the 300 blk intro back in October of last year.

Is the subsonic alot quieter even without a suppressor? I really want a .30 caliber but didn't want to buy a whole new platform just yet. I think one of the new .300's is going to be my best option and maybe later I'll go with a 6.8 SPC or .50 Beowulf, etc.

Can you shoot ANY .300 based caliber(whisper, fireball, blackout) out of the same upper or do they have to be exact caliber specific?

[bottlerocket]

Is the subsonic alot quieter even without a suppressor? I really want a .30 caliber but didn't want to buy a whole new platform just yet. I think one of the new .300's is going to be my best option and maybe later I'll go with a 6.8 SPC or .50 Beowulf, etc.

Can you shoot ANY .300 based caliber(whisper, fireball, blackout) out of the same upper or do they have to be exact caliber specific?

You really like expensive ammo

[Homemade]

Is the subsonic alot quieter even without a suppressor? I really want a .30 caliber but didn't want to buy a whole new platform just yet. I think one of the new .300's is going to be my best option and maybe later I'll go with a 6.8 SPC or .50 Beowulf, etc.

Can you shoot ANY .300 based caliber(whisper, fireball, blackout) out of the same upper or do they have to be exact caliber specific?

I read on AR15.com that you can shoot whisper out of the blackout. I would assume subsonic is quieter without a suppressor, just dont have any real facts on it.

gat0r said the blackout (which he shoots) is slightly bigger than fireball, and whisper. It would stand to reason those rounds could be fired safely from the BLK barrel

[94StangFiveO]

You really like expensive ammo

Well, this is more for fun and a novelty. I'm trying to keep the cost down by just doing an upper and it hopefully won't turn into a regular round I shoot. It'll be built for a purpose.

I also want to get a .22 upper for when I want to be a cheap ass.

[94StangFiveO]

I read on AR15.com that you can shoot whisper out of the blackout. I would assume subsonic is quieter without a suppressor, just dont have any real facts on it.

I need to do some reasearch but it sounds like I know what I want. I just need to get the funds aside and build the damn thing.

[Homemade]

I need to do some reasearch but it sounds like I know what I want. I just need to get the funds aside and build the damn thing.

kinda the same boat i am in.... just finished my stag 6L build. Spent 625 on it and it retails for 1k.

I was going to wait on Cj and the group but if I stay lefty this will cost me alot less.

BtW i saw a BLK barrel on a google search for 160

[Homemade]

I also want to get a .22 upper for when I want to be a cheap ass.

I agree.... i think using the same lower... fcg, will make you a better shot.

$298 .22lr dedicated upper

http://store.prairiearms.com/store/p...nv-Upper-Ar15/

[YALE]

You might look at a 7mm-08 AR-10 if you're dead set on a longer barreled rifle (yes, it's a .284 bullet, not a .277 bullet). The 6.8 doesn't have a ton of case capacity to make use of that longer barrel, IMO.