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 .300 blk subsonics vs. 223 from 8" barrel
IceMan711  [Team Member]
5/18/2012 1:03:55 AM
I've been thinking about a 8" pistol AR build, but It just seems that .223 is not the answer for such an animal. There is just too much muzzle blast, too much flash, poor ballistics, etc. Would subsonic .300blk be the solution to this problem?

This will not be a suppressed weapon. That being the case, is subsonic .300blk significantly quieter then .223 out of an 8" barrel? Also, are the ballistics that much better with subsonic .300 vs. .223?

Sorryl I am sure this question has been answered 100 times by now but I'm pretty late to the AAC party and haven't been able to search for anything.
GunDisaster  [Team Member]
5/18/2012 1:43:15 AM
Well yes 300BLK subsonic ammo will be somewhat quieter than 5.56mm, but really the difference is more dramatic if using suppressors. What exactly do you plan on doing with this weapon? I mean I think 300BLK subsonic with a suppressor is great for hunting hogs quietly at night. But if you are just wanting something compact for home defense then go with 9mm instead of 300BLK.
IceMan711  [Team Member]
5/18/2012 4:14:48 PM
This would be home defense weapon / range toy. Maybe 9mm would fit the bill, it would certainly be cheaper to shoot than .300blk. 9mm doesn't have the range or the ballistics I was hoping for though, might as well just us a 9mm handgun. Maybe there just isn't an ideal caliber for an AR pistol when not using a suppressor.
j_king  [Member]
5/19/2012 2:52:15 PM
Originally Posted By IceMan711:
This would be home defense weapon / range toy. Maybe 9mm would fit the bill, it would certainly be cheaper to shoot than .300blk. 9mm doesn't have the range or the ballistics I was hoping for though, might as well just us a 9mm handgun. Maybe there just isn't an ideal caliber for an AR pistol when not using a suppressor.


300 BLK subsonics definitely don't have enough energy for me to consider them as a viable HD round. Combined with the fact that the will just be punching holes straight through and over-penetrate.