Thanks everyone for the info! We shoot in a valley of the rolling hills outside of Nashville. Our back stop is a old washed out creek bed that has about a 30ft vertical rise then goes to about a 45 degree angle for about 250yrds. Plenty of safety. I guess I haven't settled into this wonderful state yet. I was born and raised in San Diego. You mention the word fire arm out there will get you in trouble. Like Kirk mention, I will check with the local powers to be.