Besides sharpshooters there seems to be 3 options.
Spokane Rifle Club... Check their website for what days and times they are open. I think it is $20.
Spokane Valley Rifle Club... Out in Mica, so a little drive. 1000+ Yard range. Open2pm until dusk. $5.
The other is fish lake or something... Never been there myself, some other member will come along and give you more info on it shortly
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