[mississippi red-neck]

So even if the gun did not have a clearing cycle. The spin down of the barrels would eject unfired rounds. And the feed belt stops feeding when the trigger is released.

Interesting.

So you are saying that the gun's chambers only have rounds in them while firing and start and end empty?

I was thinking of maybe overheated barrels from previous firing or maybe an electrical short but if the above is the case you're right it couldn't happen.

Also I would think their would be some kind of safety switch or procedure that would have to be employed or bypassed first to make the trigger hot.

[quietolong]

>>> So you are saying that the gun's chambers only have rounds in them while firing and start and end empty? <<<<

Yes
And even if some how a round remained in the “action” Only the barrel that’s in firing position is in battery. the others would be in some state of loading /extraction. And if it did cook off. It would be the only one because the barrel assy. is not rotating.
( And even if it was. the feed belt would need to be feeding it and the clearing solenoid would need to be off and the drum would need to be feeding the link belt.)

>>> Also I would think their would be some kind of safety switch or procedure that would have to be employed or bypassed first to make the trigger hot. <<<

There is.
first is Master Arm. And then guns need to be selected. (there’s also a weight on wheels sw.)

Also note because it’s the speed the barrels rotate determines the rate of fire. It can fire at any rate from 0 to. It flys a part. ( 7200 is what the specs. say is max)
And aircraft do have a selector for Hi/Low fire rate (6000/4000 for F-14) and carry 1400 rounds in the drum assy.

To bad I can’t link some of the text & pictures from my old AO 3&2 book!