Hi Jack,
There are public outdoor ranges across PA set up by the PA Game Commission. One of these ranges is a short 15 minute ride from my house. They don't have a caliber limit thankfully, so this is where I take the 50. As far as what I shoot, it's mostly paper. The occasional basketball size rock does make it in my crosshairs once shooting paper gets a little boring. It's pretty cool to watch a rock the size of a large pumpkin turn into dust from a single hit from a 50.
