Amends GS 14-409.47 (Sport Shooting Range Protection Act of 1997) so that local governments are preempted from regulating sports shooting ranges (currently, local governments are allowed to regulate the location and construction of a sport shooting range after September 1, 1997). Makes conforming changes. Increases the exceptions to those instances of when a county (GS 153A-129) or city (GS 160A-189) may by ordinance regulate,  restrict, or prohibit the discharge of firearms so that these local governments cannot do so when the firearm is used on or within private property with the permission of the owner or possessor of the property and conducted with reasonable care to prevent a projectile from crossing the bounds of the property. Applies to existing municipal or county ordinances when the act becomes law. Specifies that any municipal or county ordinance inconsistent with the act is void and unenforceable.