If you are looking for a gun store to get lost in, head up to Kesselrings. Take the Bow Hill exit, #236, head east, then go north on highway 9 about 5 miles or so, maybe less. It will be on your left in the middle of nowhere. they have everything that you can't find anywhere, especially exotic ammo.

I always stop at the Holiday Market whenever I go to Bellingham. It is a MUST STOP.