You might want to read the information at the above website. The recommended shot fall zone is 900 feet from the firing line. Also I wouldn't tell the property owner next to you that or he might file suit to get you to clean up the lead on his land.
All of the above are correct. We recently tested our soil for reclamation and most of the shot was 200 - 250 yds out, some at up to 300. We own enough property that we dont worry about it falling on others land. However as a precaution we give Turkeys to farmers who live in the area and will be donating $$ & food to the local senior center that helps the poor in the area. It is good to stay on everyones good side. We live in a time where the left is ever present and they are radical