Fuel trucks

[Marek_Tucan]

AFAIK the mai problem with ammo explosions is the propelant stuff, not the shells themselves - they'd need longer time in the fire to cook off and even then they would usually just burn or if detonate, detonate in random order, no the massive bang. OTOH if you have lots of relatively unprotected propellant... Look at HMS Hood for reference, or on that Chally hit into hatch with HESH - AFAIK splinters ignited propellants in hull storage.
From what I've read, modern explosives in say HEAT rounds tend just to first melt and then burn, not to go kaboom. After all the explosives have to sustain rough abuse - esp. when travelling through the barrel.