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Oregon standard is 150 yards from an occupied dwelling.
AUTHORITY TO REGULATE FIREARMS
166.170 State preemption
166.171 Authority of county to regulate discharge of firearms
166.172 Authority of city to regulate discharge of firearms
166.173 Authority of city or county to regulate possession of loaded firearms in public places
166.171 Authority of county to regulate discharge of firearms. (1) A county may adopt ordinances to regulate, restrict or prohibit the discharge of firearms within their boundaries.
(2) Ordinances adopted under subsection (1) of this section may not apply to or affect:
(a) A person discharging a firearm in the lawful defense of person or property.
(b) A person discharging a firearm in the course of lawful hunting.
(c) A landowner and guests of the landowner discharging a firearm, when the discharge will not endanger adjacent persons or property.
(d) A person discharging a firearm on a public or private shooting range, shooting gallery or other area designed and built for the purpose of target shooting.
(e) A person discharging a firearm in the course of target shooting on public land that is not inside an urban growth boundary or the boundary of a city, if the discharge will not endanger persons or property.