I have been watching deer when a close by gun goes off. It scares me completely out of my skin, but doesn' t even phase the deer. My buddy has unloaded his six-shooter on a deer at 60 yards missing every shot - deer didn' t flich until a bullet hit the dirt in front of him. So I' m convinced they can' t hear a gun shot for some odd reason, what do you think? (if this is already out here, sorry to post again, just couldn' t find it).