Hey, I killed a ground squirrel that had climbed a dead tree with a .45-70 bolt action once, even though I completely missed it! Yes its true, the squirrel tumbled out of the tree stone dead, all I found was a tiny drop of blood from its nose. Figured that big old bullet passing by must have killed it from the shock wave traveling up to its brain. Try that with your puny .308 Windsock or whatever.