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[ARCHIVED THREAD] - Kaboom! (Page 1 of 2)
Posted: 3/20/2016 2:16:12 PM EDT
 Stolen from Facebook. Not my gun or pic. This is the only photo available at this time, but I've requested more from the poster. He claims it was with factory LC M193, and verified it was not a squib by saying that he is sure the previous round hit the target, however he has not yet even removed the handguard. Either way, it's one of the more spectacular failures I've ever seen |
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Wow, the only time I have seen failures like that is when the wrong ammo has been loaded, I was at the range a couple of weeks ago with my blackout and another guy mistakenly loaded blackout in his .223 and blew the gun up, which I have seen a few times. I would have taken it apart right away to figure out what happened, hope no one was hurt!
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https://scontent-iad3-1.xx.fbcdn.net/hphotos-xaf1/v/t1.0-9/fr/cp0/e15/q65/1477599_10207539214312913_7969579731581221788_n.jpg?efg=eyJpIjoidCJ9&oh=1ff96a63ba52eaeccb80dc3f3897c368&oe=5791EA77 Stolen from Facebook. Not my gun or pic. This is the only photo available at this time, but I've requested more from the poster. He claims it was with factory LC M193, and verified it was not a squib by saying that he is sure the previous round hit the target, however he has not yet even removed the handguard. Either way, it's one of the more spectacular failures I've ever seen It obviously failed because of the recalled eotech. |
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Even the lower is toast. I see at least 2 splits in the first photo alone. Quoted:
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I'll give him $50 for the lower paperweight. Even the lower is toast. I see at least 2 splits in the first photo alone. They look like scratches to me. ETA: The front one is a scratch, I'm not so sure about the rear one though. ETA2: I believe that the rear one is a crack. It looks like when the upper split it ripped the top of the bolt catch off and pulled the lower with it. |
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That picture looks very much like a gun that came through the shop a couple of weeks ago. Guy said he put 300 BO in his 5.56 by mistake. Had both uppers AND ammo on bench at the same time and was not paying attention. Loaded gun, switched to weak side, and pulled the trigger. Very lucky he was not shooting it right handed. (His description of events).
Gun looked just like this one. Upper blown open, front lugs cracked, mag blown out. Moral of the story..................FUCKIN PAY ATTENTION when ya got a gun in yer mitts. 
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What the owner claims, and what actually happened are often not the same. He, or someone else either reloaded with pistol powder, or used BO rounds by mistake. +1 to this. I only stopped in here to make the Eotech joke but i see someone beat me to it. In any case i would put good money on reloads being the culprit here. Still a nasty one. |
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Quoted: That picture looks very much like a gun that came through the shop a couple of weeks ago. Guy said he put 300 BO in his 5.56 by mistake. Had both uppers AND ammo on bench at the same time and was not paying attention. Loaded gun, switched to weak side, and pulled the trigger. Very lucky he was not shooting it right handed. (His description of events).
Gun looked just like this one. Upper blown open, front lugs cracked, mag blown out. Moral of the story..................FUCKIN PAY ATTENTION when ya got a gun in yer mitts. Always wondered what the Forward Assist was for... |
| Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. |
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Quoted: Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. My limited understanding is if the neck crimp is not tight .300" can be forced into a .223" chamber w/ predictable results. The Forward Assist is not your friend. |
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Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. Yes, you can get a BO to partially chamber in a .223, I have seen it happen a few times, it will chamber enough to actually fire and it causes this type of damage and worse, which is why I NEVER have the .223 and the .300 sitting on the bench at the same time and my BO mags have bright orange bands around the bottom of the magazine. I take my grandson to the range every once in a while so he can shoot the .22 and he has grabbed magazines for grandpa and they have been .300 BO mags, he is only 9 and still learning. But yes, it is possible to get them to fire in a .223 |
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Yes, you can get a BO to partially chamber in a .223, I have seen it happen a few times, it will chamber enough to actually fire and it causes this type of damage and worse, which is why I NEVER have the .223 and the .300 sitting on the bench at the same time and my BO mags have bright orange bands around the bottom of the magazine. I take my grandson to the range every once in a while so he can shoot the .22 and he has grabbed magazines for grandpa and they have been .300 BO mags, he is only 9 and still learning. But yes, it is possible to get them to fire in a .223 Quoted:
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Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. Yes, you can get a BO to partially chamber in a .223, I have seen it happen a few times, it will chamber enough to actually fire and it causes this type of damage and worse, which is why I NEVER have the .223 and the .300 sitting on the bench at the same time and my BO mags have bright orange bands around the bottom of the magazine. I take my grandson to the range every once in a while so he can shoot the .22 and he has grabbed magazines for grandpa and they have been .300 BO mags, he is only 9 and still learning. But yes, it is possible to get them to fire in a .223 We keep a .300 Blackout and a 5.56 taped together with clear shipping tape specifically to show people how it happens. Due to cartridge over all length limits imposed by the magazine, and the fact that the 5.56 case it shortened by the length of the case from shoulder to mouth, it is entirely possible to chamber a spire point .300 in a 5.56 chamber. I have never compared them but I would imagine that a 200/220 gr round nose subsonic will not chamber. Will check and see tomorrow. I know, paying attention is for suckers..................... 
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Yes, you can get a BO to partially chamber in a .223, I have seen it happen a few times, it will chamber enough to actually fire and it causes this type of damage and worse, which is why I NEVER have the .223 and the .300 sitting on the bench at the same time and my BO mags have bright orange bands around the bottom of the magazine. I take my grandson to the range every once in a while so he can shoot the .22 and he has grabbed magazines for grandpa and they have been .300 BO mags, he is only 9 and still learning. But yes, it is possible to get them to fire in a .223 Quoted:
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Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. Yes, you can get a BO to partially chamber in a .223, I have seen it happen a few times, it will chamber enough to actually fire and it causes this type of damage and worse, which is why I NEVER have the .223 and the .300 sitting on the bench at the same time and my BO mags have bright orange bands around the bottom of the magazine. I take my grandson to the range every once in a while so he can shoot the .22 and he has grabbed magazines for grandpa and they have been .300 BO mags, he is only 9 and still learning. But yes, it is possible to get them to fire in a .223 Every 300 blackout I own will chamber in my 223 ARs. I have shown people at the range this to show them how easy it is to get the wrong mag and have a bad day. |
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What the owner claims, and what actually happened are often not the same. He, or someone else either reloaded with pistol powder, or used BO rounds by mistake. Exactly! This is why comments or pictures are useless until the actual owner comes along to provide info. Second and third hand is just a guessing game. |
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Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. Yes. It has happened many times. Some make it out of the barrel, others....not so much. |
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Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. Why is it obvious? |
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That is one of the worst I've seen. My first guess would be pistol powder or squib, Maybe even 300blk in 5.56? Id say no fcking way that was stock M193 even filled to the top with mil ball powder its not going to do that. When an AR blows the left side of the upper frequently peels off like shown. Everyone saying this is a particularly bad one, you haven't been paying attention i guess. thats typical for a Kb and its been happening longer than 300BLK/300Whisper has been around |
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Yep, there is one person that actually knows and I assume he is even lying to himself. We already know without being told. Quoted:
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That's impressive. I would love to see the actual cause determined. Yep, there is one person that actually knows and I assume he is even lying to himself. We already know without being told. ^ this |
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Quoted: When an AR blows the left side of the upper frequently peels off like shown. Everyone saying this is a particularly bad one, you haven't been paying attention i guess. thats typical for a Kb and its been happening longer than 300BLK/300Whisper has been around Quoted: Quoted: That is one of the worst I've seen. My first guess would be pistol powder or squib, Maybe even 300blk in 5.56? Id say no fcking way that was stock M193 even filled to the top with mil ball powder its not going to do that. When an AR blows the left side of the upper frequently peels off like shown. Everyone saying this is a particularly bad one, you haven't been paying attention i guess. thats typical for a Kb and its been happening longer than 300BLK/300Whisper has been around I've seen numerous pics with that kind of damage to the upper, very few of these ones have that kind of damage to the carrier as well, then add in the lower and optic damage, and then I've never seen one explode a bolt like this one. |
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Damn. I hate to see that happen to a Colt! I'd be interested to hear if he updates the post, if you're following it OP. If that really was Lake City XM193, I'll be flabbergasted. And a bit worried! Seriously. Xm193 is 90% of my collection and what I shoot |
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Seriously. Xm193 is 90% of my collection and what I shoot Quoted:
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Damn. I hate to see that happen to a Colt! I'd be interested to hear if he updates the post, if you're following it OP. If that really was Lake City XM193, I'll be flabbergasted. And a bit worried! Seriously. Xm193 is 90% of my collection and what I shoot There's a pretty solid chance that isn't what the owner was shooting. I wouldn't worry. |
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Quoted: There's a pretty solid chance that isn't what the owner was shooting. I wouldn't worry. Quoted: Quoted: Quoted: Damn. I hate to see that happen to a Colt! I'd be interested to hear if he updates the post, if you're following it OP. If that really was Lake City XM193, I'll be flabbergasted. And a bit worried! Seriously. Xm193 is 90% of my collection and what I shoot There's a pretty solid chance that isn't what the owner was shooting. I wouldn't worry. Yeah, I'm certain the guy is/was lying about something. He refused to even take off the handguard and take a pic, but was adamant that they had ruled out a squib, refused to pop a takedown pin out to snap a pic of the underside of the carrier. I was going to try to get him to show a pic of the ammo, and or get lot info, but wasn't worth it. Oh well. Still a good failure and good reminder of what can happen when you screw up in this hobby. |
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While we don't know what happened, if it was .300 BO in a 5.56, that illustrates a point worth mentioning: Having the same chamber dimensions on different calibers can result in some serious negligent discharges. While this may fall in the category of too much information, I have several hunting rifles in .280 Remington. It's 7mm bullet is .284". The .270, based on the same '06 case, uses a .277 bullet. You'd think that .007 difference would not matter. It is not even visibly perceptible.
Remington deliberately pushed the shoulder .050 forward on the .280 so that it would be impossible to accidentally chamber it in a .270 and produce a ka-boom. This makes me wonder why we don't make the case shoulder a bit farther out on the .300 BO to prevent this sort of thing. |
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Excuse my ignorance but would a 300BO chamber in a 5.56/.223 rifle? If my understanding is correct then I would expect that it would not chamber and then the rifle would refuse to fire out of battery but the descriptions by previous posters contradict this. Obviously 5.56/.223 would chamber in a 300BO rifle but I would not expect it to explode. Clarification is appreciated. Honestly, it depends. As the other poster mentioned, with poor neck tension you could get into a case where there is enough set back to allow it. The other issue is if you seat bullets deep enough, you can get a shape of the finished product that lies within the dimension of the regular 5.56 chamber. A lot of guys will seat the lighter projectiles pretty deep to get good feeding from the magazines. In fact, some of the rules of thumb are to seat to where the diameter of the bullet is the same as the diameter of the case neck as it compares to the little ribs in the standard mags. I know that description sucks, but don't have a picture handy off hand, but the chamber picture posted above makes it pretty clear how it can happen. I've loaded a few dummies to see if I could make it happen, and haven't been able to in any of my rifles. They will try to load and it would appear like a situation that needs a little forward assist to finish closing the bolt, but not something I can "force" into happening. I like to load my 300BLK a bit long for this exact reason. Not fool proof but hopefully might keep it from going into battery and get me to check the malfunction. EDITED after seeing the chamber cutaway link. |
[ARCHIVED THREAD] - Kaboom! (Page 1 of 2)
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