Funny story...
I watched an Ak-47 get torture tested at one of those shoots, mag after mag fed through at full auto. Gun started to get hot so the shooter donned a pair of welding gloves and started to fire it again. Soon the barrel/hand guard is burning him through the gloves and the wood stock is charring. After laying another welding glove under the gun he resumes fire, at this point the barrel is cherry red. The gun is soldiering on, little to no effect on cyclic rate and no stoppages. After about a 1,000 rounds of full auto the gun finally jams, with its bolt seized. After using a 10lb lead hammer to free the bolt up they put another couple hundred rounds through it. Eventually the gun catches on fire, the guy throws it in a mud puddle and walks away. Five minutes later he again hammers the bolt free and finger waves the barrel to get major debris out. With sand, grit and grim still everywhere he loads it up and it still shoots.
How accurately is another matter, I am sure the barrel was loose after that beating....
Gained a lot of respect for Kalashnikov after that little experience!
Strip