It only makes sense that my potentially 100th accepted suggestion is of a vintage…

There are no currently valid 0.22 sellers on Outpost.

Recent sales:

http://www.tf2outpost.com/trade/25692579 Quicksold for 0.28 ref (2 scrap and a weapon, I don't believe you can price stuff by the weapon anyways, but I'm not sure)

http://www.tf2outpost.com/trade/25648473 0.33 ref

Buyers:

http://www.tf2outpost.com/trade/19125404 0.33 ref

http://www.tf2outpost.com/trade/25737517 0.33 ref (Young)

http://www.tf2outpost.com/trade/25314497 0.22 ref

http://www.tf2outpost.com/trade/13347627 0.22 ref

As there is a sale and buyers at 0.33 ref, and no current sellers at and buyers invalidating 0.22, 0.33 flat should suffice.