Bang while driving....

I was driving on RT 15 at about 70 mph in my new ‘96 F150 truck years ago in the Fall in upstate PA when I heard a loud bang like that. I pulled over and couldn’t find anything. When I got home a couple of days later, there was a big dent on the inside of the bed of the truck and a spent shotgun slug rolling around in the back.

I guess someone missed a deer and I caught the slug.