I am inproving my shooting range I have at my house. I have a shooting bench that we shoot rifles at and is right at 50 yards. We also walk up closer to range to shoot handguns. I have a hill in the back yard that I am digging out. I am about 25 feet long in the hill and the back part is already about 5 feet deep. I am going to try to get down closer to 7 feet and then will stack railroad ties up and then back fill behind them with all the extra dirt. I am just looking for some ideas of people that have done something similiar so all the railroad ties don't fall forward into the range.