Here's part of the Army accident report that was filed because I lost several workdays. If you still choose to believe it can't happen, that's your choice.
The gentleman who wrote the articles in Rifle Magazine also sent me a long letter in which he explained that while several factors in my case may or may not have led to the accident itself, they definitely contributed to the severity of the damage.
These factors were: sensitive pistol primers (Federal Large Pistol); fast burning powder (10 gr of Unique); and a short fat straight .44 Mag case that takes up most of the room inside of the magazine tube and aligns the cartridges in-perfectly nose to tail. All these combined led to a bad accident, and if any one of these had been different, there probably wouldn't have been a catastrophic failure of the magazine tube.
A less sensitive pistol primer or rifle primer may not have gone off in the first place, or if so, there may not have been a chain reaction where all 6 primers ignited. A slower burning powder may not have produced enough gas and energy to cause a chain reaction, but the first case might have split and the powder only partially burned. Like you can see in Charlie Sometimes' photos, if the cases had been bottlenecked or were longer rimmed cases they wouldn't be aligned with the nose right against the primer, but would have been slightly offset. Finally, if there had been more room in the magazine tube (not taken up by fat straight sided cartriges), there would have been more room for the gas to expand and vent, without blowing the tube apart.