A friend on another forum mentioned finding a box of 17 WSM ammo at Walmart. I was across the street from one today and found two boxes on the shelf. I know they weren't there a few weeks ago so it seems like the drought may be getting ready to let up. $19.94/box and 20gr. (I prefer 25s) but after not seeing any for over a year and a half I'm not feeling choosy.
Keep your eyes open. It's should start showing up in your neighborhood soon.