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USMM guy

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Discussion starter · #1 ·
I am sure that most have heard of this. When a round will supposedly cook off on it's own just from being exposed to extreme heat in the chamber of a gun that has been fired in a sustained, rapid fashion. Mostly you hear about this happening in accounts of military actions where fully automatic weapons are being used. But I am just wondering if this could happen with contemporary semiautomatic rifles using modern ammunition?
 
It's possible.

Only one I ever had cook off was in a 106 recoiless.
 
If it was going to happen in the civilian world then you think it would happen during one of the record setting events like 1000 rounds in under so many minutes. Has never happened to me. Now hang fires have happened.
 
It does happen in weapons running full auto which is why most of them are designed to fire from an open bolt. But I remember seeing a guy run 1000 rounds through a 1911 just as fast as he could load and fire from a table full of magazines. The gun got so hot he could barely hold on to it - but none of the rounds cook off.
 
Discussion starter · #7 ·
Yes this does happen.

If it was going to happen in the civilian world then you think it would happen during one of the record setting events like 1000 rounds in under so many minutes. Has never happened to me. Now hang fires have happened.
I have had a hang fire or two myself.
 
I've seen it happen in 7.62X51 NATO co-ax machine guns in Tanks in the Army.

You have to either break the ammo belt (twist) or let it run dry.

I've never seen it happen outside the military.
 
Once upon a time, several lance corporals were left unattended by any NCO's on a hot range one summer day and try as they might, including running several belts together...... no "cook offs" occurred. With no gunner around and even the R/O taking a break somewhere they tried and tried to see if they could break something. They did the Rambo with a sixty, they ran belt after belt. They were left uncontrollably laughing until the mean old NCO's returned. Now the weapons cleaning party that happened after the NCO's returned is the stuff of legends. But that is another story......
 
Once upon a time, several lance corporals were left unattended by any NCO's on a hot range one summer day and try as they might, including running several belts together...... no "cook offs" occurred. With no gunner around and even the R/O taking a break somewhere they tried and tried to see if they could break something. They did the Rambo with a sixty, they ran belt after belt. They were left uncontrollably laughing until the mean old NCO's returned. Now the weapons cleaning party that happened after the NCO's returned is the stuff of legends. But that is another story......
Interestingly enough, I know of some Army corporals who did the same thing. No film though, so it can't be proven that it ever occurred! :)
 
Once upon a time, several lance corporals were left unattended by any NCO's on a hot range one summer day and try as they might, including running several belts together...... no "cook offs" occurred. With no gunner around and even the R/O taking a break somewhere they tried and tried to see if they could break something. They did the Rambo with a sixty, they ran belt after belt. They were left uncontrollably laughing until the mean old NCO's returned. Now the weapons cleaning party that happened after the NCO's returned is the stuff of legends. But that is another story......
Lance Corporals will do amazing things when left alone.
Semper Fi!
 
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