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Posted: 1/11/2009 4:35:55 PM EDT
| I went to the range to test some loads (.223), and got through about 2/3 of my ammo and had a failure. The cartridge went into the chamber but did not shoot. I tried to eject it and even with force you could not extract the round. After inspection, the bolt didn't close all the way, once it was pushed forward, it fired. This happened once again, then I switched to factory ammo, and everything worked fine, which lead me back to a probable reloading problem. My first thought was maybe the cartridges were to long but, I have remeasured the two failed cartridges and they both measured to correct lengths. Any idea what the problem could be? |
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There is a chance if you crimped the rounds that the shoulder had expanded larger than allowable. This would not be detected by measuring the rounds, especially after firing. Always look for marks on the brass, and whenever possible when encountering a difficult round DO NOT FIRE IT! |
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That was from an overload or a bad case. Not the situation here. A properly functioning AR doesn't fire OOB. |
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Quoted:
That was from an overload or a bad case. Not the situation here. A properly functioning AR doesn't fire OOB. How do you know the AR in the video fired OOB? If you notice the idiot in the video continually forces the bolt forward until it goes into battery and then it kabooms instead of stepping back and extracting the round like he should have. I am sure forcing an overcrimped round into the chamber and firing could have the same result if you had case failure. The point of the video is don't force it. |
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Quoted:
Quoted:
That was from an overload or a bad case. Not the situation here. A properly functioning AR doesn't fire OOB. How do you know the AR in the video fired OOB? If you notice the idiot in the video continually forces the bolt forward until it goes into battery and then it kabooms instead of stepping back and extracting the round like he should have. I am sure forcing an overcrimped round into the chamber and firing could have the same result if you had case failure. The point of the video is don't force it. Do you have any AR's? |
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Quoted:
Quoted:
Quoted:
That was from an overload or a bad case. Not the situation here. A properly functioning AR doesn't fire OOB. How do you know the AR in the video fired OOB? If you notice the idiot in the video continually forces the bolt forward until it goes into battery and then it kabooms instead of stepping back and extracting the round like he should have. I am sure forcing an overcrimped round into the chamber and firing could have the same result if you had case failure. The point of the video is don't force it. Do you have any AR's? I was just asking a question to see what your thoughts were but you seem to be wanting a pissing match instead. I have 5 ARs |
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Quoted:
Thanks, for the help all. In a situation where I do get a round stuck in the chamber and it won't extract what is the safest way to get the round out? I thought of 2 ways, shooting it and pushing it out with a ram rod, and shooting it felt safer to me. I would shoot it as long as I knew it was an otherwise good round. I have had this happen with some win, white box before. Shot it and extracted just fine with no other problem. |
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The ONLY way an AR can fire OOB is if the cam pin is missing or defective. The carrier holds the firing pin away until the cam pin is FULLY SEATED. If you notice, the last bit of the cam pin travel is directly forward.
Now, onto the idiot in the video. He didn't check the ejected round. It probably was missing a bullet. It is an accounting thing. The AR will not cycle if the bullet doesn't pass the port and having a bullet lodge in the bore means it will not cycle. The issue here is a round that will not chamber, easily. With mag-length rounds, this is most likely from incomplete sizing or a case that is too long AND heavily crimped. I had some ammo left over from a rifle I sold, sized for it only and it would not chamber in a new rifle of mine. It required a few hits on the FA every so often. Completely safe. |
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