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300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 2:05 pm
by Alohakid
Aloha again,

From my 'blowback" post, noted that I've not shot nor kept up with the AR15/silencer world in 3 years. With that said, my questions below:

1. With my existing Rock River .223/5.56 and AAC Ranger II, may I shoot 300 AAC Blackout ammo with no modifications?

2. If modifications are required, must I A.) Get new can and B.) 300 AAC upper?

As always, your comments/suggestions are greatly appreciated!

Aloha,
Kid

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 2:20 pm
by J Krammes
300BLK will NOT shoot from a 5.56 gun... It will blow up! Also, it will not fit through your Ranger. 300BLK is .308, your RR is .223, and so is your can. At a minimum, you will need to swap out the barrel to 300BLK, but I recomend a whole new upper and a new can.

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 2:52 pm
by doubloon
Will a 5.56 bolt even close on a 300BLK round?

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 2:57 pm
by J Krammes
I have not tryed it, and won't but I have seen (on the net) at least two guns blown up from putting 300BLK in 5.56 guns. I do not know if they forced it in with the FA or not.

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 3:31 pm
by Alohakid
J Krammes wrote:300BLK will NOT shoot from a 5.56 gun... It will blow up! Also, it will not fit through your Ranger. 300BLK is .308, your RR is .223, and so is your can. At a minimum, you will need to swap out the barrel to 300BLK, but I recomend a whole new upper and a new can.
Krammes - Great stuff Sir! Must most move quickly to order before obongo and minions trample on our gun rights. Hell, most likely have new can in hand before finding 300BKL ammo! :wink:

Aloha,
Kid

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 3:33 pm
by Alohakid
My next question, which AAC can is preferred for 300BLK?

Aloha,
Kid

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 4:22 pm
by J Krammes
7.62SDN-6

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 4:22 pm
by 700PSS
762-SDN-6

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 5:54 pm
by Alohakid
J Krammes & 700PSS - Thank you both.

Holly mutha of pearl - 7.62SDN-6 = $1,050.00... so much for my bonus going to just a new 300BLK build with Aimpoint Micro H-1... maybe I can cut laws for 5 bucks a yard as I did as kid in the 60's....

Re: 300 AAC Blackout Questions

Posted: Wed Jan 16, 2013 7:11 pm
by doubloon
Don't go cutting any laws. :mrgreen:

Re: 300 AAC Blackout Questions

Posted: Mon Jan 28, 2013 9:12 am
by Alohakid
doubloon wrote:Don't go cutting any laws. :mrgreen:
Damn, how did I miss that? Ok, LAWNS not laws! :lol:

Re: 300 AAC Blackout Questions

Posted: Mon Jan 28, 2013 12:38 pm
by DarkPhoenix
Here is a good thread about using the wrong ammo in your gun.

http://www.300BlkTalk.com/forum/viewtop ... 28&t=81802


Not my picture, i cant remember where i stole it from, it just looks cool...
It is almost artistic the way to baffles peeled the jackets off a few bullets before completely clogging. I think the caption was that this is what happens when you fire 300BLK in a 223 can...

Image

Re: 300 AAC Blackout Questions

Posted: Sat Feb 16, 2013 1:19 am
by Alohakid
DarkPhoenix wrote:Here is a good thread about using the wrong ammo in your gun.

http://www.300BlkTalk.com/forum/viewtop ... 28&t=81802


Not my picture, i cant remember where i stole it from, it just looks cool...
It is almost artistic the way to baffles peeled the jackets off a few bullets before completely clogging. I think the caption was that this is what happens when you fire 300BLK in a 223 can...

Image
To quote Inspector Gadget, "WOWSERS"

Re: 300 AAC Blackout Questions

Posted: Sat Feb 16, 2013 1:24 am
by Sdustin
ive got both a delton 556 and an aac 9" blk, ive tried to chamber each in the other and its a no go maybe some monkey banging on the useless forward assist could blow them selves up but hey thats life if your stupid maybe you should die?

Re: 300 AAC Blackout Questions

Posted: Sat Feb 16, 2013 12:55 pm
by yamatitan
Sdustin wrote:ive got both a delton 556 and an aac 9" blk, ive tried to chamber each in the other and its a no go maybe some monkey banging on the useless forward assist could blow them selves up but hey thats life if your stupid maybe you should die?
Try putting the 5.56 can on the 300blk ill think you will have better luck that way. :lol: