YOu know I have a neighbor who shoots guns in his yard, It could have been someone having Target Pratice.. Like our neighbor.
We used to freak out & pull the kids in the house & call the cops.
We talked to him, and gave him our phone#'s. He calls and lets us know now, when he is going to be shooting, so we don't freak out. He has a target? with a dirt mound behind it on his own property.
If you haven't heard anything, then it was probably something like that... Just my thoughts on it