Friend and I were sitting on a top of a small mtn, hear gunshot in the distance, rural area didn't think about it too much All of a sudden we both hear a wizz and a ricochet between our heads.. Look at each and run.. That was scary.. ..Edited for clarity.. Sorry..
They said it was far away so it may have gone subsonic on the way. Especially small common bullets like .22 will lose speed relatively quickly as they fly.