Serious question, I understand the safety aspect of why they would dump unused bombs before making a carrier landing, but why blow off the ammo from the guns too ??? Is it to reduce landing weight ???
I was told that if a plane still carrying live ammo crashed on deck and a fire ensued that the unspent ammo could cook off possibly causing injury to those on the flight deck. Not sure about the weight thing. Each round weighs a little less than a pound but if you have 1000 rounds on board, that's a thousand pounds, more or less.