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Posted: 11/13/2013 9:53:37 AM EDT
[#1]
I'm glad you're safe. Do you have photos?
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Posted: 11/13/2013 9:57:44 AM EDT
[#2]
Very strange to see the cracks in the lowest pressure point of the barrel. Sure sounds like a barrel obstruction to me. I'd get in touch with DD. They'll properly inspect the barrel and may be able to supply a reason. Glad you're not injured.
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Posted: 11/13/2013 10:04:07 AM EDT
[#3]
I only took 1 photo at my LGS (they are a DD dealer).
http://i.imgur.com/5SOrgnw.jpg I am glad everyone was OK. I think a barrel obstruction would have caused damage to the suppressor. Maybe I am wrong. |
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Posted: 11/13/2013 10:05:01 AM EDT
[#4]
Contact Daniel defence.
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Posted: 11/13/2013 10:09:07 AM EDT
[#5]
Quote HistoryQuoted:
Contact Daniel defence. Already did. Waiting for their response. |
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Posted: 11/13/2013 10:29:29 AM EDT
[#6]
let us know what they say. I have one of those rifles
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Posted: 11/13/2013 10:34:46 AM EDT
[#7]
Could the round fired just before the one that split the barrel have been a squib load? Were you shooting factory or handloads?
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Posted: 11/13/2013 10:42:18 AM EDT
[#8]
Quote HistoryQuoted:
Could the round fired just before the one that split the barrel have been a squib load? Were you shooting factory or handloads? In his unedited 1st post on ARFCOM, the OP states he was using factory ammo. OP, what ammo? Do you remember hitting the plate in the shot immediately PRECEDING the last shot? |
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Posted: 11/13/2013 10:43:22 AM EDT
[#9]
Ho Lee Fuk! Never seen anything like that.
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Posted: 11/13/2013 10:45:50 AM EDT
[#10]
Looks like a squib almost made it out...
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Posted: 11/13/2013 10:47:56 AM EDT
[#11]
Tag for outcome
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Posted: 11/13/2013 10:50:25 AM EDT
[#12]
IN for the outcome.
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Posted: 11/13/2013 10:52:44 AM EDT
[#13]
Glad everyone is alright this is only speculation but maybe with the extra pressure from the suppressor you exposed a weak spot in the barrel and it just failed. It is made by humans and it could have had a flaw the MPI testing just could not detect. It happens nothing is perfect and I am for sure DD will make it right. But you could have had a squib maybe a round that was over loaded by accident if factory ammo (remember humans made this it can fail also) or just the perfect storm of maybe over pressured round with suppressor and a flaw in the barrel.
BUT DAMN only seen something like this when a buddy of my uncles put his barrel in the mud obstructed the bore of his rifle and had the barrel flower pedal luckily the bolt action held shut and the barrel failed and not his face. I got to see the barrel when he came back to camp afterwards I wish it would have happened in the days of cell phones but it happened when I was younger and phones did not have cameras. |
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Posted: 11/13/2013 11:15:57 AM EDT
[#14]
Quote HistoryQuoted:
In his unedited 1st post on ARFCOM, the OP states he was using factory ammo. OP, what ammo? Do you remember hitting the plate in the shot immediately PRECEDING the last shot? Quote HistoryQuoted:
Quoted:
Could the round fired just before the one that split the barrel have been a squib load? Were you shooting factory or handloads? In his unedited 1st post on ARFCOM, the OP states he was using factory ammo. OP, what ammo? Do you remember hitting the plate in the shot immediately PRECEDING the last shot? It was the first shot of the day, and I am 85% sure it was PMC black box 5.56, 62 grain. I had full magazines, and it was either that or XM193. Unfortunately, it was outdoors, and the ground was littered with brass from previous shooters. |
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Posted: 11/13/2013 11:33:10 AM EDT
[#15]
Possable squib load? Glad you are ok. Barrels can be replaced.
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Posted: 11/13/2013 11:34:31 AM EDT
[#16]
Got spiders @ your house? Little spiders just looking for a nice cozy gun barrel home?
I posit the following: barrel obstruction. muzzle did not split b/c of suppressor threads holding it together. OP is lucky & should go buy another AR, & ask a pretty gal for a date. |
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Posted: 11/13/2013 11:47:09 AM EDT
[#17]
Quote HistoryQuoted:
Got spiders @ your house? Little spiders just looking for a nice cozy gun barrel home? I posit the following: barrel obstruction. muzzle did not split b/c of suppressor threads holding it together. OP is lucky & should go buy another AR, & ask a pretty gal for a date. No spiders, and it is kept in a dehumidified gun safe (maybe spiders like it warm?). I already have several lowers ready for suitable uppers, I just need to figure out what I want each one to be. As far as a date, I took my wife out Saturday night with no kids. Does that count? 
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Posted: 11/13/2013 12:02:10 PM EDT
[#18]
1st post is in GD with a topic like this?
Am I the only one that's a little too suspicious here? |
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Posted: 11/13/2013 12:04:54 PM EDT
[#19]
Quote HistoryQuoted:
1st post is in GD with a topic like this? Am I the only one that's a little too suspicious here? This isn't GD. 
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Posted: 11/13/2013 12:08:17 PM EDT
[#20]
Quote HistoryQuoted:
1st post is in GD with a topic like this? Am I the only one that's a little too suspicious here? I don't know what GD is. Help? |
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Posted: 11/13/2013 12:08:18 PM EDT
[#21]
Daniel Defense will make it right. They are a great company to deal with and turn out some great rifles.
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Posted: 11/13/2013 12:18:46 PM EDT
[#22]
Quote HistoryQuoted:
I don't know what GD is. Help? Quote HistoryQuoted:
Quoted:
1st post is in GD with a topic like this? Am I the only one that's a little too suspicious here? I don't know what GD is. Help? General Discussion. We have had a rash of new individuals posting there for their first post, which is unusual for a first-timer. Just ignore him. |
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Posted: 11/13/2013 12:21:50 PM EDT
[#23]
Quote HistoryQuoted:
I don't know what GD is. Help? Quote HistoryQuoted:
Quoted:
1st post is in GD with a topic like this? Am I the only one that's a little too suspicious here? I don't know what GD is. Help? GD means general discussion. He's skeptical of your story. But you didn't post in the general discussion forum. Jokes on him. |
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Posted: 11/13/2013 12:30:16 PM EDT
[#24]
I just can't get over how it happen so far down the barrel. You said it was your first round of the day right? So I pose this question, don't take offense.
Did you inspect the rifle after you last took it out or before shooting it this time? Possible squib from last range session maybe?? Assuming you did nothing after or before this range of course. If you did... then my mind is blown. Only explanation i can think of is weak spot in barrel finally gave out brother. Bad/Good luck all in one. Let us know what DD says. |
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Posted: 11/13/2013 12:35:28 PM EDT
[#25]
Holy shit, that could have been an AR-15 turned into a hand grenade.
Eye protection! 
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Posted: 11/13/2013 12:38:14 PM EDT
[#26]
Quote HistoryQuoted:
1st post is in GD with a topic like this? Am I the only one that's a little too suspicious here? familiarity concerns.... |
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Posted: 11/13/2013 12:38:18 PM EDT
[#27]
Quote HistoryQuoted:
I just can't get over how it happen so far down the barrel. You said it was your first round of the day right? So I pose this question, don't take offense. Did you inspect the rifle after you last took it out or before shooting it this time? Possible squib from last range session maybe?? Assuming you did nothing after or before this range of course. If you did... then my mind is blown. Only explanation i can think of is weak spot in barrel finally gave out brother. Bad/Good luck all in one. Let us know what DD says. I always inspect down the barrel prior to shooting. There were no obstructions that I saw. I didn't clean it after the last time I shot, and my OCD was killing me a bit on that one. I only ran 100 rounds through it last time, and no issues. The explanation given at the store was the best I could figure. He said it is rare, but there are double powder rounds that come out, maybe 1 in a million. That, combined with the can on the front, could have caused it, with a weak barrel. Sounded like a perfect storm scenario to me, but anything is possible. I bought from DD, due to their reputation. I hope I am not let down. It has been a rough few firearm months. I also own a Springfield XDs (no I am not complaining about the recall). Let's say I am just glad no one has gotten hurt, and there are two empty spots in my safe waiting for these two to return (among the other empty spots for future additions). I will let everyone know as soon as I get a response from DD. |
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Posted: 11/13/2013 12:44:11 PM EDT
[#28]
Wow! glad to hear youre Ok. Please keep us posted. I'll pay very close attention to this thread as one of my barrels is a DD CHF.
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Posted: 11/13/2013 1:02:10 PM EDT
[#29]
Wow. Glad you are unhurt.
I agree that it appears to show signs of something in the barrel. On the other hand, I've never had one and I don't even remember where it was I'd see what a barrel looks like when shooting it if it IS ubstructed. Maybe at hunters safety for something when I was a kid. Many moons ago. My point it I would imagine it's possible that the barrel was faulty. But man, that is crazy. |
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Posted: 11/13/2013 1:09:42 PM EDT
[#30]
In for outcome. Very curious to know what could have caused this. An earlier posts' thesis that the suppressor threads held the muzzle together is probably sound... still doesn't even come close to explaining why such a severe crack would form so far down the barrel.
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Posted: 11/13/2013 1:37:50 PM EDT
[#31]
Glad no injuries.
Tagged for outcome. |
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Posted: 11/13/2013 1:48:15 PM EDT
[#32]
Quote HistoryQuoted:
This isn't GD. Quote HistoryQuoted:
Quoted:
1st post is in GD with a topic like this? Am I the only one that's a little too suspicious here? This isn't GD. Damn active topics got me. My apologies. |
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Posted: 11/13/2013 2:26:49 PM EDT
[#33]
No rings in the barrel before the split? (Normally you can see a ring in or outside if a bullet stuck and another hit it.)
Don't be surprised if it was a squib and you still heard/saw a steel plate get hit. 5.56 bullets can act weird so the first bullet might have fractured in the barrel, and part of the jacket got left behind and the core hit the steel. One thing it probably wasn't was an overcharge... it may have been loaded with a fast powder out of spec. Might be material fatigue... might have been cracked for a long time but not visible. |
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Posted: 11/13/2013 2:49:46 PM EDT
[#34]
"There were three splits in the barrel, starting past the gas block, and almost to the threads on the end."
I'm no expert but it appears the gas port diameter was not sufficient to run the suppressor long term. The number of rounds previously fired without incident, the three(3) splits and their location seem to indicate this. I have a couple of questions; 1) Does a suppressor that's threaded on the barrel create more pressure than one attached to a mount? 2) OP, which suppressor? |
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Posted: 11/13/2013 3:04:08 PM EDT
[#35]
Looks like an older V5 with the Omega X rail. That looks real bad.
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Posted: 11/13/2013 3:11:53 PM EDT
[#36]
Quote HistoryQuoted:
I only took 1 photo at my LGS (they are a DD dealer). http://i.imgur.com/5SOrgnw.jpg I am glad everyone was OK. I think a barrel obstruction would have caused damage to the suppressor. Maybe I am wrong. I've seen a few split barrels over the years but never one as clean as the one pictured. Interesting. Good that you are OK. You got to keep us informed on this matter. GD |
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Posted: 11/13/2013 3:15:22 PM EDT
[#37]
My theory? Things fail, sometimes strangely. It has happened to every product ever made by man.
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Posted: 11/13/2013 3:41:35 PM EDT
[#38]
Every blown AR barrel i've seen looked like this. Re: the suppressor increasing back pressure: the suppressor increases the operating system pressure by holding the pressure in the barrel longer. It does not increase the chamber pressure or pressure inside the bore. The suppressor increases backpressure by slowing the release of the propellant gases. I seriously doubt that the suppressor caused the barrel to crack. |
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Posted: 11/13/2013 4:15:27 PM EDT
[#39]
In for outcome, and damn that's a crazy split in the barrel.
I am sure DD will replace it for free, and this kinda makes me think to check down my barrel before shooting which I never do. |
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Posted: 11/13/2013 4:42:46 PM EDT
[#40]
I like the obstruction idea.
maybe something in the suppressor? |
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Posted: 11/13/2013 4:42:46 PM EDT
[#41]
Quote HistoryQuoted:
In for outcome, and damn that's a crazy split in the barrel. I am sure DD will replace it for free, and this kinda makes me think to check down my barrel before shooting which I never do. I have the same barrel as the OP... This a strange kaboom. Hopefully DD gets to the bottom of this, if not I see cheap DD CHF barrels on the EE. |
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Posted: 11/13/2013 5:30:37 PM EDT
[#42]
Doesn't look like any obstruction blowup I have ever seen. Since you say it started just past the gas block, and given the round count, I would say my best guess is when the barrel was drilled for the gas block, the drill left a microcrack that propagated. If you could get the gas block off and look at that area you might find evidence of a few shots prior to the boom that show powder marks. Once it progressed very far, the final shot would split it to the end.
One thing for sure, DD will do a thorough diagnosis before they say anything. Personally, I wouldn't be any more scared to shoot another DD of that vintage than I would any other quality AR. |
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Posted: 11/13/2013 5:36:12 PM EDT
[#43]
Quote HistoryQuoted:
I have the same barrel as the OP... This a strange kaboom. Hopefully DD gets to the bottom of this, if not I see cheap DD CHF barrels on the EE. Quote HistoryQuoted:
Quoted:
In for outcome, and damn that's a crazy split in the barrel. I am sure DD will replace it for free, and this kinda makes me think to check down my barrel before shooting which I never do. I have the same barrel as the OP... This a strange kaboom. Hopefully DD gets to the bottom of this, if not I see cheap DD CHF barrels on the EE. Not likely. DD will definitely be interested in this barrel. |
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Posted: 11/13/2013 5:37:39 PM EDT
[#44]
Quote HistoryQuoted:
"There were three splits in the barrel, starting past the gas block, and almost to the threads on the end." I'm no expert but it appears the gas port diameter was not sufficient to run the suppressor long term. The number of rounds previously fired without incident, the three(3) splits and their location seem to indicate this. Gas port diameter has less than nothing to do with this. |
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Posted: 11/13/2013 5:48:30 PM EDT
[#45]
Quote HistoryQuoted:
"There were three splits in the barrel, starting past the gas block, and almost to the threads on the end." I'm no expert but it appears the gas port diameter was not sufficient to run the suppressor long term. The number of rounds previously fired without incident, the three(3) splits and their location seem to indicate this. I have a couple of questions; 1) Does a suppressor that's threaded on the barrel create more pressure than one attached to a mount? 2) OP, which suppressor? Wrong. You aren't even making any sense. |
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Posted: 11/13/2013 5:57:55 PM EDT
[#46]
Op, welcome to AFRCOM.
Tag for more info. |
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Posted: 11/13/2013 6:04:22 PM EDT
[#47]
Quote HistoryQuoted:
I have the same barrel as the OP... This a strange kaboom. Hopefully DD gets to the bottom of this, if not I see cheap DD CHF barrels on the EE. Doubt it. I wouldn't sell mine just because one person had a problem. |
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Posted: 11/13/2013 6:06:22 PM EDT
[#48]
Quote HistoryQuoted:
Doubt it. I wouldn't sell mine just because one person had a problem. Quote HistoryQuoted:
Quoted:
I have the same barrel as the OP... This a strange kaboom. Hopefully DD gets to the bottom of this, if not I see cheap DD CHF barrels on the EE. Doubt it. I wouldn't sell mine just because one person had a problem. Agreed. First I have ever heard of this. I look forward to the outcome, or response from DD. |
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Posted: 11/13/2013 6:54:09 PM EDT
[#49]
Have you posted or linked this thread on the DD industry page? Might gain attention faster if they haven't called you back yet.
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Posted: 11/13/2013 7:50:29 PM EDT
[#50]
That's wild. I'm gong with the following.
1. Obstruction 2. Weird shit happens 4. Pressure spike due to...? 3. Something went wrong in the forging process. I have 5 DD rifled barrels with plenty of rounds through them, they are excellent barrels. However unlikely that it was a barrel issue, every manufacturer has had a part fail here or there on a customer's rifle. I'm sure DD will take care of you. |
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