Ah yes, the good ole days. i grew up in a rural area and back in the day we used to do that a lot and play some mailbox baseball too.
I had this one friend that would hit signs 9 out of 10 times AND from the drivers side, he would throw the bottles out the driver side window and over the car to hit the sign. This was almost 20 years ago when drinking and driving wasnt such a big issue it seemed.
This one time we were riding down a 2 lane road, which was a highway for our area and a car with a bunch of guys came up and were yelling out thw window and tried to run us off the road to start a fight. They threw something at his car and he got so pissed he started yelling for empty bottles, he launching bottles as fast as we could hand them to him, 2 hit the car and a third hit the windshield, they swerved off the road into the shoulder, hit an island of concrete and a yield sign and then the car crashed down into a ditch. I couldnt beleive how accurate he was with the beer bottles, must have been from lots of practice.