In-date, but needs an update pretty badly.

Using last 2 months.

Sale 1:

Sold for $165 on marketplace.tf

https://marketplace.tf/items/30978;5;u14

https://backpack.tf/item/6927736069 - No outpost

http://manic.tf/keyprice/?at=2018-08-03 - $165 / $1.9 = 86.84 keys

X = 87

Sale 2:

Sold for Vivid Plasma Vive La France (65) + SGG Rancho Relaxo (12)

https://i.imgur.com/OPnwNo4.png - B/O of 80

Seller: https://backpack.tf/profiles/76561197964171516#!/compare/1536192000/1536278400

Buyer: https://backpack.tf/profiles/76561198105509820#!/compare/1536278400/1536364800

https://backpack.tf/item/6739385466

X = 77

Sale 3:

Sold for Miami Nights Tough Stuff Muffs (51.5) + ~9.5 keys

No outpost

Seller: https://backpack.tf/profiles/76561198094281531#!/compare/1535155200/1535241600

Buyer: https://backpack.tf/profiles/76561198077369632#!/compare/1535068800/1535241600

https://backpack.tf/item/6843125241

X = 61

Sale 4:

Sold for Cloud 9 Cotton Head (43.5) + 16 keys and some ref

https://backpack.tf/item/6843125241 - B/O of 56 on a different one, should be safe to assume a similar B/O here. (even if this doesn’t cap, it’ll fall into the range anyways)

Seller: https://backpack.tf/profiles/76561198002757046#!/compare/1534982400/1535068800

Buyer: https://backpack.tf/profiles/76561198090674120#!/compare/1535068800/1535155200

https://backpack.tf/item/6843125241

Cotton Head sold to a bot immediately after being obtained.

X = 56 (Capped by B/O)

Sale 5:

Sold with Australium Spec. KS Knife (~17.5) for Miami Nights Brotherhood of Arms (69.5)

Seller: https://backpack.tf/profiles/76561198105509820#!/compare/1536451200/1536710400

Buyer: https://backpack.tf/profiles/76561198024925599#!/compare/1536364800/1536451200

https://backpack.tf/item/6739385466

X = 52

Sale 6:

Sold for 50 keys

Seller: https://backpack.tf/profiles/76561197980830714#!/compare/1534982400/1535068800

Buyer: https://backpack.tf/profiles/76561198261265788#!/compare/1534982400/1535068800

https://backpack.tf/item/6800438650

X = 50

Sale 7:

Sold to a quickbuyer for 48 keys

Seller: https://backpack.tf/profiles/76561198060677929#!/compare/1535846400/1536710400

Buyer: https://backpack.tf/profiles/76561198002757046#!/compare/1536537600/1536624000

https://backpack.tf/item/6866468221

X = 48

Sale 8:

Sold to a quickbuyer for 48 keys

Seller: https://backpack.tf/profiles/76561198188676728#!/compare/1534032000/1534896000

Buyer: https://backpack.tf/profiles/76561198002757046#!/compare/1534809600/1534896000

https://backpack.tf/item/6843125241

X = 48

Sale 9:

Sold for 45 keys

Seller: https://backpack.tf/profiles/76561198042694990#!/compare/1536969600/1537056000

Buyer: https://backpack.tf/profiles/76561198070705963#!/compare/1536883200/1536969600

https://backpack.tf/item/6749958428

X = 45

Sale 10:

Bought from scrap.tf for 45 keys + some metal

Seller: https://backpack.tf/profiles/76561198135388328#!/compare/1535068800/1535155200

Buyer: https://backpack.tf/profiles/76561198094281531#!/compare/1535155200/1535241600

https://backpack.tf/item/6843125241

X = 45

Sale 11:

Sold for Pro. KS Aus Medigun (~43)

Seller: https://backpack.tf/profiles/76561198162494916#!/compare/1533168000/1533254400

Buyer: https://backpack.tf/profiles/76561197995912889#!/compare/1533081600/1533168000

https://backpack.tf/item/6877693200

X = 43

Sale 12:

Sold for Ancient Codex Captain Space Mann + Galactic Codex Universal Translator (13) + FoD Arms Race (6.25)

http://www.tf2outpost.com/trade/29736632 - No visible B/O

Seller: https://backpack.tf/profiles/76561198030343929#!/compare/1534118400/1534204800

Buyer: https://backpack.tf/profiles/76561198243783292#!/compare/1534204800/1534809600

Gonna be pretty high without a B/O cap.

Sale 13:

Sold with some ref for Kill-a-Watt Tartan Spartan + Eerie Orbiting Fire Mongolian + Stormy Desert Marauder + FN Cool Anodized Shotgun

http://www.tf2outpost.com/trade/29765325 - B/O of 82

Seller: https://backpack.tf/profiles/76561198155486673#!/compare/1536278400/1536710400

Buyer: https://backpack.tf/profiles/76561198446018643#!/compare/1536624000/1536710400

https://backpack.tf/item/6750792984

Pretty high, excluding.

Other Sales:

https://backpack.tf/item/6877693200 (#1 & #2)

https://backpack.tf/item/6866468221 (#3)

https://backpack.tf/item/6843125241 (#4)

https://backpack.tf/item/6739385466 (#5)

#1

Untraceable

https://backpack.tf/profiles/76561198409819845#!/compare/1533081600/1533254400

https://backpack.tf/profiles/76561198162494916#!/compare/1533081600/1533168000

#2

Untraceable, only some keys match

https://backpack.tf/profiles/76561197995912889#!/compare/1533168000/1533254400

https://backpack.tf/profiles/76561198030343929#!/compare/1533081600/1533168000

#3

Sold for Strange Pro. KS Field-Tested Rainbow Sniper Rifle + several keys in items

https://backpack.tf/profiles/76561198053828213#!/compare/1534032000/1534204800

https://backpack.tf/profiles/76561198060677929#!/compare/1533600000/1534118400

Hard to get a mini on the Sniper. SCM shows a sale at ~80 keys from almost a year ago, but the seller here re-sold for next to nothing.

https://backpack.tf/profiles/76561198144345082#!/compare/1535500800/1535760000

https://steamcommunity.com/market/listings/440/Strange%20Professional%20Killstreak%20Rainbow%20Sniper%20Rifle%20%28Field-Tested%29?filter=professional

On top of that, there’s no B/O anywhere.

#4

Sold to scrap.tf for ~37 keys?

https://backpack.tf/profiles/76561198090674120#!/compare/1535068800/1535155200

https://backpack.tf/profiles/76561198135388328#!/compare/1535068800/1535155200

Not convinced that scrap was paying this little.

#5

Untraceable, unscanned backpack between the two compares

https://backpack.tf/profiles/76561198155545034#!/compare/1532131200/1532217600

https://backpack.tf/profiles/76561197964171516#!/compare/1533945600/1534032000

Sellers:

https://i.imgur.com/MW6mpWd.png

https://backpack.tf/item/6749958428 - 55 keys

https://backpack.tf/item/6866468221 - 56 keys

https://backpack.tf/item/6739385466 - 69 keys

https://backpack.tf/item/7026359879 - 70 keys

https://backpack.tf/item/6756711559 - 80 keys

https://backpack.tf/item/7134160164 - ~81.5 keys

Sales at:

43

45 (2x)

48 (2x)

50

52

56

61

77

87

Sales to, or lower than quickbuyers are common and should not be excluded.

Will exclude 43, however, due to the buyer at 44 https://i.imgur.com/TBx4e88.png

77 and 87 are massive outliers given the 4 cheaper sellers. Excluding 77 and 87.

Going with 45-61.

https://backpack.tf/profiles/76561198135388328#!/compare/1538524800/1538611200

https://backpack.tf/profiles/76561198133814282#!/compare/1538611200/1538697600

Untraceable, bought from scrap

https://backpack.tf/profiles/76561198068306320#!/compare/1537747200/1538265600

https://backpack.tf/profiles/76561198159152968#!/compare/1538092800/1538179200

sold for vivid officer's ushanka, way too low

https://backpack.tf/profiles/76561198446018643#!/compare/1537056000/1537142400

https://backpack.tf/profiles/76561198114402400#!/compare/1537056000/1537142400

bulk for beams modest

https://backpack.tf/profiles/76561198024925599#!/compare/1538438400/1538524800

https://backpack.tf/profiles/76561198126699749#!/compare/1538438400/1538524800

sold for beams metal drill + combustible cutie, drill is outdated. b/o was originally 69, don't know if that was consistent through the duration of the suggestion, don't wanna act upon this sale (especially given current sellers) unless i get confirmation of the b/o at the time of the sale.

sellers updated:

https://i.imgur.com/TT4mm2O.png

https://backpack.tf/item/7180495256 - 49

https://backpack.tf/item/6843125241 - 50

https://backpack.tf/item/7026359879 - 60

https://backpack.tf/item/6750792984 - 70

https://backpack.tf/item/6756711559 - 75

untraceable

https://backpack.tf/profiles/76561198133814282#!/compare/1538870400/1538956800

https://backpack.tf/profiles/76561198813466865#!/compare/1536883200/1538956800

untraceable

https://backpack.tf/profiles/76561198813466865#!/compare/1539043200/1539129600

https://backpack.tf/profiles/76561198133814282#!/compare/1538956800/1539043200

bulk for scorching hive

https://backpack.tf/profiles/76561198133814282#!/compare/1539043200/1539129600

https://backpack.tf/profiles/76561198075998447#!/compare/1539043200/1539129600

sold with orbiting fire bubble pipe for frostbite combustible kabuto + some keys

https://backpack.tf/profiles/76561198048563101#!/compare/1538870400/1538956800

https://backpack.tf/profiles/76561198089253101#!/compare/1538870400/1538956800

probably better to use on the kabuto. b/o was 60 on the kabuto.

sold to scrap for 44 keys + some amount of metal

https://backpack.tf/profiles/76561198089253101#!/compare/1538956800/1539043200

https://backpack.tf/profiles/76561198135388328#!/compare/1538956800/1539043200

bought from scrap for purple energy human cannonball (~48.5) + 6 keys and some metal

https://backpack.tf/profiles/76561198135388328#!/compare/1538956800/1539043200

https://backpack.tf/profiles/76561198215681879#!/compare/1538870400/1539043200