Portland, politics aside is a good place to live. If you intend to buy a house, I'd recommend Washington, or Clackamas Counties, as they have lower property taxes. For Shooting ranges, there's Tri-County Gun Club, and Douglas Ridge. They are members only and there's probably a waiting list. There is also Clark RIfles in Brush Prairie, WA, although they are a private club they do allow the public to shoot rifles on Sundays for a $20 range fee. There are a couple of indoor pistol ranges, A Place to Shoot, Beavercreek Armory, and the Clackamas PTSC, but they require you buy their ammo = expensive. Then there's the public lands like Brown's Camp etal where you can just set up and shoot.
So you have a lot of options in a state whose gun laws are infinitely better that Illinois.