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Posted: 5/21/2017 10:44:39 AM EDT
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This is an instructive post, this recently happened to my rifle. The take home lesson is "watch your ammo" and for people to see what exactly happens when an AR blows the fuck up.
My buddy was shooting my rifle, using a magazine that had been in his ammo box for a while. He does reload but both of us shoot allot and a random round might have ended up in it, even in the dark. I have two guesses as to what happened, but I'll let y'all say what you think happened so as to not sully your thoughts. No one was hurt, but it was exciting. I've already replaced the rifle. That is a piece of the BCG between the upper and lower Attached File Attached File This was recovered from the barrel... total weight was 83g Attached File |
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y'all have found my two guesses.
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83gr's too light for a .300 in a .223, too heavy for a single .223 . certainly appears to be 2 projectiles, but without more info (click, manual cycle, fire?) can't know. |
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I'm amazed you don't see more user injury from this stuff |
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let's think this through.
if the misfire was a .223 squib you would have manually ejected a empty .223 case and it would have been mixed in with the others, no clue there. if the misfire was a not in battery .300 followed by a in battery .300 (kaboom) a unfired .300 would have been ejected, did you find a unfired .300? can (did) you determine which case was manually ejected? was it a unfired round? either .223 or .300? was it (the misfire) the first attempt  after a magazine change, or a number of rounds in? is it possible the "misfire" was a unloaded chamber due to the bolt carrier not picking up the first round? did you recover enough case to I.D. it? |
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. Yes it was click-manual cycle-kaboom, which is why my buddy thinks two rounds with the first being a squib. I bet a not fully seated 223 bullet stuck on the lands followed by another shot 1st click was because bolt was not fully seated, extract the case without the bullet, manual cycle jammed the stuck bullet in there farther, cramming the second bullet down the case boom when too much bullet for the barrel. a 300/223 combo can do the same but the way the bullets look combined with the fact you have to smash the 300 bullet in there with a lot of cycles as well as f/a action I dont think it was a 300. double 556 bullets can stack with one cycle as I've done it before-narrowly missing a kaboom when i saw the powder next to the gun |
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Hello Currahee, Sorry to see your rifle in that condition, but glad to see you are ok. Will send you a PM now in regards to your rail. V/R, GACS But the G trigger is already in another build, and the ALG rail will be sometime soon. |
SO I'm the guilty party here. IMO the root of this is shooter carelessness on my part. I was checking out the reticle on this new optic on Curahee's rifle, and grabbed a 20 round magazine out of my box that was all random range pickups. (no 300s, no reloads, etc) I usually pick them up after matches, and whatnot when I am policing up the area. SO.. its really that simple... don't shoot ammo that you don't know.  I should have been disassembling them, and harvesting the brass, and possibly projectiles.
I had a FTF. Not a squib that I or anyone else could tell. There was no audible pop, there was no recoil. Just click, and no bang. I racked that round out. I SUSPECT that the projectile stayed in the chamber. Maybe it was loaded long? Maybe the powder was wet, and it had enough pressure to be lodged in the lands and grooves? Then I loaded another round in, took aim, and it made a loud bang... resulting in what you see here. I suspect that the new round was seated in the chamber, and compressing the 2 projectiles on top of each other. Making a compressed load, etc. I have never had a 300aac round in my possession, much less loaded into a magazine. This ruined a bunch of good parts, including a lower, and I still feel pretty bad about that. All of it was replaceable, and no one got injured. Thankfully it was not a SBR, or Transferable MG... I couldn't imagine what I would be doing about that. I am VERY thankful for no injuries to myself or others, and that it was only a (relatively) cheap mistake. My advice... #1 don't shoot rounds you don't know! #2 Wear glasses! You only have 1 set of eyes. #3 Don't think it can't happen to you #3 Use QUALITY parts.. I really think the bolt in this gun saved me. It is from a majorly well respected maker of Bolts, and it took one HELL of a beating. If this had been some cheapo non inspected bolt, I think the gun may have actually come apart, and injured me. The bolt REALLY saved the day. |
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SO I'm the guilty party here. IMO the root of this is shooter carelessness on my part. I was checking out the reticle on this new optic on Curahee's rifle, and grabbed a 20 round magazine out of my box that was all random range pickups. (no 300s, no reloads, etc) I usually pick them up after matches, and whatnot when I am policing up the area. SO.. its really that simple... don't shoot ammo that you don't know. I should have been disassembling them, and harvesting the brass, and possibly projectiles.
I had a FTF. Not a squib that I or anyone else could tell. There was no audible pop, there was no recoil. Just click, and no bang. I racked that round out. I SUSPECT that the projectile stayed in the chamber. Maybe it was loaded long? Maybe the powder was wet, and it had enough pressure to be lodged in the lands and grooves? Then I loaded another round in, took aim, and it made a loud bang... resulting in what you see here. I suspect that the new round was seated in the chamber, and compressing the 2 projectiles on top of each other. Making a compressed load, etc. I have never had a 300aac round in my possession, much less loaded into a magazine. This ruined a bunch of good parts, including a lower, and I still feel pretty bad about that. All of it was replaceable, and no one got injured. Thankfully it was not a SBR, or Transferable MG... I couldn't imagine what I would be doing about that. I am VERY thankful for no injuries to myself or others, and that it was only a (relatively) cheap mistake. My advice... #1 don't shoot rounds you don't know! #2 Wear glasses! You only have 1 set of eyes. #3 Don't think it can't happen to you #3 Use QUALITY parts.. I really think the bolt in this gun saved me. It is from a majorly well respected maker of Bolts, and it took one HELL of a beating. If this had been some cheapo non inspected bolt, I think the gun may have actually come apart, and injured me. The bolt REALLY saved the day. I've shot and seen people shoot a lot of ammo of unknown progeny. Everything from seized ammo that is ordered to be disposed, to store return ammo called in, to widow's clearing out cabinets, to you name it, to someone doing range pickups. I've seen someone purposely collect up range pick-ups over weeks, and then spend an entire shooting session just shooting that ammo (which boggles my mind that he was able to find that much). In that time, I've learned about range pick-ups two things: 1) Beware 9mm ammo, as someone may have been trying to "make major", which is IDPA shooters super-charging 9mm in a purpose reinforced 9mm, to basically .38 super power; in a 9mm. 2) Beware of wet powder. A decent portion of range-pickup ammo has wet powder/wet primers. Neither of these in themselves will typically cause a kaboom in a good strong arm, but they can sure cascade into one - particularly the wet powder. Because of exactly what happened to you. Either that, or you had a 6.8 that looked like .223 and missed it. But more likely, in your case, that first shot had wet powder and squibed, and the next shot went right into it. The biggest question though is what happened to the wet gun-powder, from the squib? I would expect there to be unburned powder either in one of the cases on the ground you inspected, and/or in the gun - and it doesn't sound like either was found. [Edit to add - this is NOT an endorsement. Even though I've seen lots of shots fired with that sort of stuff, this is never going to be something that's going to be labelled as a "good idea"!] |
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Don't shoot range pickups period.
I have seen some outrageously bad reloads at matches. Super hot rounds that split brass and blew primers, powder puffs that squibbed, uncrimped/undersized rounds that literally fell apart in the magazine. No way I would shoot anything picked up from the range. I also won't reload rifle brass from the range (unless it's mine) and I inspect range pistol brass VERY carefully. |
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Awesome indeed, and why I support the company whenever possible. Both pieces suffered no damage at all. But the G trigger is already in another build, and the ALG rail will be sometime soon. Quoted:
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Hello Currahee, Sorry to see your rifle in that condition, but glad to see you are ok. Will send you a PM now in regards to your rail. V/R, GACS But the G trigger is already in another build, and the ALG rail will be sometime soon. |
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