I'm not sure if this has already been addressed, but I wasn't even sure exactly how to run a search for it. If it has been addressed I apologize.

A friend of mine has about 4 acres of land in Apollo, PA (Armstrong County). The land is mostly open field with small hills. I would like to shoot at pistol targets with one of the hills as a backstop. She told me that it's fine with her, and that she would just notify the neighbors what we were doing so they aren't alarmed.

Given the circumstance, is it legal for me to shoot targets with my 9mm pistols on her land?

I know she said I'm allowed, and have her permission, but I definitely want to make sure. Also if you need anymore information let me know and I'll give what I can.

Thanks in advance!