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Don't shoot 300 BLK in your 5.56 rifle..
Posted: Tue Mar 11, 2014 9:49 pm
by Jumping Frog
The results of firing 300blk through a 5.56 barrel.
That's a projectile stretched in the center section.
Shooter was unharmed, mag blew out and gun was damaged.
From facebook:
https://www.facebook.com/JCWeaponry/pho ... 53/?type=1" onclick="window.open(this.href);return false;
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Tue Mar 11, 2014 9:59 pm
by eureka40
Oh boy, can the bolt even lock up with a 30 cal round in a 22 chamber? I wouldn't think so, but I don't know.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Tue Mar 11, 2014 10:03 pm
by Big Bronze Rim
Wow, that's pretty crazy. I'm actually surprised that it chambered and the bolt locked up.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Tue Mar 11, 2014 11:19 pm
by Jumping Frog
Big Bronze Rim wrote:Wow, that's pretty crazy. I'm actually surprised that it chambered and the bolt locked up.
I wonder if there was poor neck tension and the bullet got pushed back into the case when chambering.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Wed Mar 12, 2014 11:13 am
by SC1903A3
The 300 blackout is a cut down 223 neck sized to to 308. The oal on a 223 is 2.25. the oal on a 300 blackout is 2.26. I can see this happening.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Wed Mar 12, 2014 5:57 pm
by Jumping Frog
AndyC wrote:So someone finally tried to push a 30-cal bullet down a 22-cal tube
If you got it through the barrel, at least it would have one heckuva ballistic coefficient!
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Thu Mar 13, 2014 9:08 am
by ELB
Glad I didn't do that but it is a pretty cool photo. That's some serious swaging.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Fri Mar 14, 2014 12:08 am
by Big Bronze Rim
Jumping Frog wrote:AndyC wrote:So someone finally tried to push a 30-cal bullet down a 22-cal tube
If you got it through the barrel, at least it would have one heckuva ballistic coefficient!
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Fri Mar 14, 2014 9:04 am
by jimlongley
ELB wrote:Glad I didn't do that but it is a pretty cool photo. That's some serious swaging.
That was my thought.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Fri Mar 14, 2014 7:22 pm
by Pawpaw
I'm having a hard time believing that photo. Mostly it's the "bullet". It supposedly underwent a sudden and extremely violent event, but looks pristine. The jacket is disturbingly uniform with no tears or distortion? The base of the bullet doesn't look like it's been subjected to that much heat or anything else.
I believe I smell Photoshop or a very well crafted hoax.
I'm not saying such an event could not or has not happened. I just don't believe this is really a photo of such an event.
Re: Don't shoot 300 BLK in your 5.56 rifle..
Posted: Fri Mar 14, 2014 9:24 pm
by puma guy
I recall a post here on the forum about a similar incident (.300 BLK in a .223/5.56 that resulted in a catastrophic failure. I can't seem to find it but I found this when I Googled it.
http://bearingarms.com/300-blackout-in- ... 15-kaboom/