Saad,
You posed this question a few pages back:
"Almost all replies indicate that there was an obstruction. Now my questions is that what chances a modern, in-proof, un-honed, un-repaired and well kept gun has against a blow like that, in comparison to a near junker."
Locally, a couple of years ago two almost new 600 series Berettas had barrel bursts. One of the hunters was a surgeon that sustained a serious hand injury. Engineers from the factory flew down, there were lawyers involved (teeth barred and as can be expected Beretta was really concerned. Extensive tests were made. In the end it was determined both blow ups were due to obstructions. One was caused by a failed shell that came apart. The other, I believe, by mud.
I hope this answers your question. Someone adviced about checking the bores after each shot before reloading (surely not an extended practice among shooters in general). We should take heed.
JC(AL)
