You should add a bit more proof. I just did some search and it seems like lots of people are willing to buy for a ref, but for some reason few goes through with it

http://www.tf2outpost.com/trade/9113539

http://www.tf2outpost.com/trade/9391408

http://www.tf2outpost.com/trade/9020317

Your second link doesn´t have a buyer on the brass, and he still has it in his backpack. And that is for .66

So update the links and you´ll have my upvote =)

Countering.

http://www.tf2outpost.com/trade/9377067 (~.33)

http://www.tf2outpost.com/trade/9176964 (Less than .66)

http://www.tf2outpost.com/trade/9399247 (.44 - .66)

http://www.tf2outpost.com/trade/9447738 (.33 - .66)

http://www.tf2outpost.com/trade/9408691 (.44)

I can show some unsolds at .66 as well. It definitely look like you're still able to get it in the current range.