Sale 1:

Sold for Orbiting Fire Tough Stuff Muffs (33)

http://www.tf2outpost.com/trade/28312410 - B/O of 30

Seller: http://backpack.tf/profiles/76561198083063071#!/compare/1467849600/1467936000

Buyer: http://backpack.tf/profiles/76561198034755171#!/compare/1462752000/1467936000

X = 30 (Capped by B/O)

Sale 2:

Sold for Aces High Tree (23.5)

No outpost

Seller: http://backpack.tf/profiles/76561198082244407#!/compare/1468972800/1471219200

Buyer: http://backpack.tf/profiles/76561198121795838#!/compare/1469404800/1469577600

X = 24

Sale 3:

Sold for Spec. KS Aussie Grenade Launcher (~18 at the time) + 6 keys + Minor items

No outpost

Seller: http://backpack.tf/profiles/76561198197145419#!/compare/1467590400/1467676800

Buyer: http://backpack.tf/profiles/76561198083063071#!/compare/1467417600/1467676800

X = 24

Sale 4:

Sold with ~1 key in items for Max’s Head

http://www.tf2outpost.com/trade/28331535 - No B/O

Seller: http://backpack.tf/profiles/76561198034755171#!/compare/1468281600/1468368000

Buyer: http://backpack.tf/profiles/76561198091288681#!/compare/1468281600/1468368000

X + 1 = 23

X = 22

No current sellers

Sales at:

30

24 (2x)

22

Not sure if I should exclude 30 or keep it in the range. It isn't that much of an outlier, really.

Going with 22-30