Because shut up, that's why.
-Love JK Rowling
EDIT: It's kind of funny reading the comments and seeing how much some people have bought in to this. He can't die until the horcuxes are destroyed, I'll give you that. But I think if it really came down to it, someone could draw and fire a gun faster then it'd take him to draw and cast due to the flinging motion involved.
It's like saying a tomahalk thrower could kill a markmen, just because of his bullet resistant dancing. (cookie for the American history reference)
-Love JK Rowling
EDIT: It's kind of funny reading the comments and seeing how much some people have bought in to this. He can't die until the horcuxes are destroyed, I'll give you that. But I think if it really came down to it, someone could draw and fire a gun faster then it'd take him to draw and cast due to the flinging motion involved.
It's like saying a tomahalk thrower could kill a markmen, just because of his bullet resistant dancing. (cookie for the American history reference)