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I'm sorry for the blood sweet and tears. A 300 blackout round won't chamber in a 5.56 unless the bullet is pushed back in the case. Letting the BCG fly home has the energy to push back rounds that are crimped well. I've tested the new blacktip load for movement, the crimp groove prevented any set back and the round didn't let the bolt lock up. You got blood spilled,lucky no damage to vision, thanks for sharing what happened. What 300 blackout load wet you shooting? |
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So you fired a 300blk in a 223 barrel? I'll guess the bullet is trapped between the bolt and extension, luckily the gas vented downward away from the face. The imprint on the arm(from the mag). |
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What kind of bullet, and how far in were you seating your 300's? I tried one of my 300 reloads in my 556, because I was wondering if what happened to you was possible. My load wouldn't chamber, and the bolt wouldn't close (I didn't let the bolt slam forward, though).
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That's harsh, dude.
Thanks for sharing the info. Great pix, btw. I wish you luck. |
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Would like to see pics of the damage once you get the bolt removed.
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On the upper, above the lower emblem, is that a bulge, or a smudge?
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And this is why I am trying very hard to segregate my ammo using different mags. That way the potential for similar is less likely. I am planning to only load 300 in Pmags and 5.56 in GI metal.
OP: Thanks for sharing as it helps solidify my reasoning. |
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wow man, very lucky it wasn't worse.....sorry for your pain..
been thinking of a .300 but with the daughter running 5.56, i'm not so sure... please update as you work through the gun...tagging this |
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WOW OP!
Was actually a great post - thanks for sharing and glad it'll all buff out. |
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Thank you for the pictures. I always wondered about this.
Glad you made it out without any major injuries. |
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Glad you were not hurt more than you were.
To be honest, I am surprised this doesn't happen more often. Or possibly it does, but they don't post because they are emabarised or something. Either way, keep us updated if you get it apart. |
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Wow. Glad you are OK. That sort of brain fart can happen to anyone.
This kind of makes me think that I should just stick with the .300 BLK in the bolt action I am working on getting built. No way to load its magazines in an AR. Of course I could still load the wrong ammunition in the AR mags, but that would be one more step where I might notice that I was doing something wrong. I too would like to see inside pcis if and when you get it apart. I'd also like to know what load it was. Thanks for posting! |
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That pretty much sucks. Glad the injuries weren't more severe!
The thought of using different mags crossed my mind the other day, and now it's stuck in my brain for good. But I don't have an operating firearm yet or ammo |
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Wow, Lucky.
Looks like the AR came apart like it was designed to. There are quite a few bad cross over cartridges, not to say this is specifically one those being a 308 through and 06 based chamber, 270, 25-06 etc. |
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you are one lucky guy.
that is one reason i never pre-load any mags when i go to the range. even though i use diff. mags for my x40 and 223. and i only have one type of ammo on the bench at a time. glad you are ok. |
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OP, I'm surprised that yours didn't blow up. Sending a .224 down a .310 bore is one thing. Sending a .308 down a .223 bore is
Glad you're here to tell your story. |
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some people really need to evaluate what hobbies they partake in. |
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What kind of bullet, and how far in were you seating your 300's? I tried one of my 300 reloads in my 556, because I was wondering if what happened to you was possible. My load wouldn't chamber, and the bolt wouldn't close (I didn't let the bolt slam forward, though). I added a photo (near the end of the list) of the type of round fired. It's a SMK 125 grain at 2.24 COL. |
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On the upper, above the lower emblem, is that a bulge, or a smudge? It's just a smudge. |
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OP, try tapping on the bottom rear of the carrier wih a brass punch and a hammer.
Might be able to bet the bolt to unlock and get a better view at the chamber. |
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some people really need to evaluate what hobbies they partake in. It would be nice never to have made a mistake in my life also. I would bet ANYONE who has been shooting long has had an O' CRAP moment. I know I have had mine. Doc It also never hurts to be reminded that there can be deadly consequences to our beloved past time. |
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some people really need to evaluate what hobbies they partake in. It would be nice never to have made a mistake in my life also. I would bet ANYONE who has been shooting long has had an O' CRAP moment. I know I have had mine. Doc It also never hurts to be reminded that there can be deadly consequences to our beloved past time. I was just going to say dont believe it cant happen to you because it can. |
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Holy carp. After I would have cleaned out my drawers, I'd consider myself lucky.
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some people really need to evaluate what hobbies they partake in. While we would all love to be perfect, mistakes can and do happen. Criticizing people after the fact can serve as a deterrent to people posting about the screwups that occur to them. Seeing pics like this help us all in the long run because even though we all know it is possible, we have an extremely negative visual that will stick with most people as they stick the mag in the magwell from now on. At least it is going to make me look twice from on? |
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Were you at a range here in WA when it happened? Just curious. Glad you are OK, that coulda turned ugly.
I'm in the process of building a 300 blk - you just gave me some things to think about. |
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ahhh, no, people are braindead. been to a gunshow or public range recently, yeah, its amazing this stuff doesnt happen more often
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Thanks grun13, for posting your unfortunate accident,,glad you had the courage to post the reminder that we all need to be aware of the consequence one can have...glad you were not seriously injured ...
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Quoted: One of the things he gave me to think about was that my system of color coding mags to ammo/weapons isn't as foolproof as I was hoping.Were you at a range here in WA when it happened? Just curious. Glad you are OK, that coulda turned ugly. I'm in the process of building a 300 blk - you just gave me some things to think about. My caliber overlap for similar looking ARs is limited, but it aint 'zero'. |
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I found your problem you are using a Rifle barrel extension with a M4 cut lower. Thats a no-go lol. Glad you are ok. I had a lack of attention moment this week as well. we where both lucky.
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Glad your O.K! I'll bet money the bullet never left the barrel! Probably stuffed into the throat. Thats why you bent the rod. You need to put the a brass rod to the lip of the carrier through the ejection port and tap the bolt back. I have no idea how your going to get that bullet out though, beside beating it out with a rod.
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You need an Air hammer.
Put a rod down the bbl and tap on the other end with the air hammer. |
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Thanks for having the balls to share, OP. I don't care who you are, mistakes happen. This WILL help prevent others from doing the same.
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You need an Air hammer. Put a rod down the bbl and tap on the other end with the air hammer. I tend to agree, using a tool steel rod down barrel and using a air hammer to dislodge the bullet may work, provided the bullet didn't "heat weld" itself to the chamber... Glad your Injuries were not even worse... |
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Bolt and mag are hosed. Is the rec. and barrel still OK?
I imagine if you had a tougher bullet, and it didn't go down the barrel it could if been a larger failure. How's the arm? |
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WOW now thats impressive!
Guess you found a new way to swage bullets |
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I would guess the barrel is bulged but maybe not.
It didnt even break any lugs which is amazing IMO. It would be interesting to know the pressure. I have to wonder what would have happened if this was a Barnes bullet, because I dont think it would have made it down the barrel. |
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One other thought from looking at your arm. You may want to get a local GP to do a quick radiograph and see if you have any shrapnel in there.
Doc |
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Apparently the bullet squeezed down and shot out the barrel. BUT. This forever ends all questions about the power of the 300BLK. Take that 346ci. A little levity in the tech forums in ok I think . |
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Apparently the bullet squeezed down and shot out the barrel. BUT. This forever ends all questions about the power of the 300BLK. Take that 346ci. A little levity in the tech forums in ok I think . LOL, yup that is some power. Not the kind of power I want to be around though. That is insane that the bullet went down the bbl. |
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I heard the sky screens in the ceiling clocked a projectile at 4500 fps that day.
Maybe. |
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Glad you're ok, OP. It was a stupid mistake, but one I can see happening very easily!
I just put together a 300 BLK upper. I decided I only wanted a couple of semi-auto rifles. I got a Sig 556 pistol and SBR'd it and put a 551A-1 lower on it. I sold my 5.56 upper for my AR SBR to fund the 300 BLK. I was worried myself about having one of these moments. Now, it can't happen because my Pmags have 300 BLK and won't go in the 551-A1 lower. The mags for the Sig get 5.56. How's the arm doing?
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Looks like the case is welded into the chamber? I can't believe a 309 caliber bullet was swaged down enough to pass through a .224 bore. Are you absolutely sure it was a 300 blk and not a overcharged 5.56mm?
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