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Posted: 9/3/2012 6:42:46 PM EDT
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Hope this is the proper place for post... but found this failure due to ammo with pics very interesting. Saw a similar failure a few months back (not this severe)
http://loadoutroom.com/3966/ammunition-malfunction-blows-up-ar-15/ |
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The investigation showed this was caused by a telescoping round. This occurs when the actual bullet is not crimped properly to the casing. When it is fed from the magazine by the bolt assembly it telescopes backwards into the casing, causing a huge increase in pressure
I do not agree... |
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Yep, total bullshit with someone covering someone else's ass.
The op had a fail to fire, jacked the dude round out without looking to see if the bullet was still intact with the case (was not and in fact embedded into the throat of the rifle), jacked another round into the chamber, pushing the already lodged bullet farther into the rifling, and when he touched off the loaded round, this is the end result, Compressed loads are normal with 223 loads, and the little difference of bullet set back is not going to take the working pressure of a standard round well over that of proof loads to blow the gun up. |
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Quoted:
Yep, I have fired many of rounds found on the range after the trainees had left that had the projectile set back. If anything it loosens the projectile so that the pressure is lower. I've done the same thing with rounds I found thrown in the "Dud Bucket" at my local range. One thing though... I must put a disclaimer that I don't recommend doing this because it can be dangerous. I've only done it with rounds I could tell were "factory" made. Someone's reloads could be out of spec or otherwise improperly made. |
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