I keep getting just bits and pieces on this without a fully explanatory study explaining all of the factors involved. But... My impression is that many or most killed by the shock wave are not instantly killed as in that last discussion above, but are rendered unconscious by the actual "concussion" to the brain (your head and body get whipped about), then asphyxiate over several minutes because the lungs can no longer process oxygen with bruised or destroyed alveoli. In watching the movie which was heavily researched and used actual EOD techs for input, they referred to the 25 meter range as the death zone or kill zone, and this with 155mm shells which would be quite similar to 155's used in WWII - maybe the explosives today are better, but at least you have a basis there. And of course, these EOD techs are using suits that minimize damage so if 25 meters is a death zone for them, then 25 meters was certainly a death zone for unprotected men in WWII. Perhaps that death zone for the actual shock wave extended as far as 50 meters? How does that relate to men in a tank? I don't know... These shock waves or pulses from a near miss could certainly enter a tank if a hatch is open and kill everyone within. However, some of these anecdotes seem to refer to buttoned down tank crews so it is difficult to see how this would kill. Even with viewing slits and other openings it would seem to me that the crew would be fairly well protected.