Don't forget that there are both federal and state regulations that limit the discharge of firearms near residences, etc.
The federal regulation:
36 CFR 261.10 (d)
Discharging a firearm or any
other implement capable of taking
human life, causing injury, or damaging
property as follows:
(1) In or within 150 yards of a residence,
building, campsite, developed
recreation site or occupied area, or
(2) Across or on a National Forest
System road or a body of water adjacent
thereto, or in any manner or place
whereby any person or property is exposed
to injury or damage as a result
in such discharge.
(3) Into or within any cave.