What needs to be changed to convert to .300 Blackout? - Page 1

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[ARCHIVED THREAD] - What needs to be changed to convert to .300 Blackout?

Posted: 12/1/2012 5:03:37 PM EDT

Aside from the barrel, what must be changed to convert an AR15 chambered for 556 MM to .300 Blackout?

Posted: 12/1/2012 5:05:09 PM EDT

[#1]

Only the barrel.

Posted: 12/1/2012 5:12:35 PM EDT

[#2]

...and most of your .223 upper the first time a .300BO round sneaks in amongst your .223 ammo

Posted: 12/1/2012 5:50:05 PM EDT

[#3]

I read the thread about something similar a few weeks ago somewhere on AR15.COM. So the barrel is the only thing. I am assuming that the case is the same dimensions in the backend as the 5.56 or .223. That is good to know. Does anyone know where I can find .300 Black Out barrels?

Posted: 12/1/2012 5:57:26 PM EDT

[#4]

Quoted:
I read the thread about something similar a few weeks ago somewhere on AR15.COM. So the barrel is the only thing. I am assuming that the case is the same dimensions in the backend as the 5.56 or .223. That is good to know. Does anyone know where I can find .300 Black Out barrels?

Not, sure what you mean by 'backend'? The .300 has a shorter case. It is shorten at the neck & shoulder, if that is what you mean.

Posted: 12/1/2012 6:12:20 PM EDT

[#5]

Quoted:
I read the thread about something similar a few weeks ago somewhere on AR15.COM. So the barrel is the only thing. I am assuming that the case is the same dimensions in the backend as the 5.56 or .223. That is good to know. Does anyone know where I can find .300 Black Out barrels?

The 300BLK case is derived from the 556.

I make my 300blk brass from 556 brass

Posted: 12/1/2012 6:14:52 PM EDT

[#6]

Quoted:
I read the thread about something similar a few weeks ago somewhere on AR15.COM. So the barrel is the only thing. I am assuming that the case is the same dimensions in the backend as the 5.56 or .223. That is good to know. Does anyone know where I can find .300 Black Out barrels?

For low cost and high quality........give SOTA arms a call.......I purchased one of their barrels.......phosphated 16 inch Black out barrels and have been pleased.........I think I paid 129.00 plus 12.00 shipping......more than reasonable and have had a lot of fun trying different reloads.........

Killed my first Deer today with this barrel.........125 Nosler ballistic tip.......got the job done.................