If I am not planning on adding a suppressor or using a barrel under 16" what are the pro's and cons of .300 AAC Blackout vs 5.56 NATO?
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If I am not planning on adding a suppressor or using a barrel under 16" what are the pro's and cons of .300 AAC Blackout vs 5.56 NATO?
Diligentia Vis Celeritas
"No, it's just a machine. I'm the weapon." - Jack Harper in Oblivion
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Totally depends on your intended application, but I would stick with 5.56 in a 16" if you want to stay with a 16" gun. It's cheaper to shoot, has better mid-long range capabilities, and is a lot cheaper to shoot. And you can still kill most game easily with a good bonded soft point, if you want to hunt with it.Originally Posted by QuackXP
.300BLK really shines as a suppressed short barrel weapon because it has better ballistics in barrels shorter than 10.5", so you can run a 7-9" barrel, and they are very quiet suppressed with subs. My HD gun is a 8" suppressed 300BLK and i love it.
If you want a .30 cal projectile in a 16" barrel, i would get an AR-10 before i got a 16" 300BLK. YMMV
Last edited by B Cart; 09-12-19 at 16:21.
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Unsuppressed? - Hunting is the only pro for 300 blk in a 16" barrel. 300 blk is for short guns - 6" to 9". After about 12.5" it's not really worth it in any way other than you need the 30 cal bullet for hunting because of some specific state law. Personally I would argue it's not worth it over 10" but I know there are a lot who would disagree with me on that.
Senior Member
I dont see 300BLK outperforming 556 in any but the most niche of applications. Definately wouldnt purchase one if you dont already have a 16" 556.
Personally I skipped 300BLK and decided if I needed more 'power' than 556, I will be using 308.
Tactical Nylon Micro Brewery
Senior Member
Pretty much my thoughts too... 300 has its very small niche, but I have no use for it.
To the OP's original question... a 16" AR with no can makes no sense in 300.
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The lessons that we learn are written the tomb stones of others. -Reid Henrichs
Senior Member
This. If you specifically want a 16" AR that can do more than 5.56 (for instance, let you hunt in states with caliber restrictions, and extend your maximum effective range), 6.5 G is a better candidate than .300 BO, IMHO. I looked at this recently and went with 6.5 G. They're *both* boutique calibers--gotta accept reality either way--but 6.5 gives you the most ballistically.
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