Eli5: why is impalement with rebar more survivable than a shot from a .50 BMG round?

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How is it that a bullet that is 12.7 mm in diameter can kill somebody with so much more bodily damage than a 20mm rebar rod that is impaled through the body? I see stories of people surviving impalement all the time, but a shot with a .50 cal to the same area almost always results in instant death. Shouldnt the bullet just go through its target because it travels so fast?

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Anonymous 0 Comments

Two reasons 1) the speed of rebar is nothing compared to the speed of the bullet 2) bullets have a popcorn effect when they enter bodily tissues, they expand and cause destruction globally as opposed to the rebar which maintains its structure and cleanly pierces this tissue

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