Killer

https://backpack.tf/item/2346588296

Sale 1) ?

https://backpack.tf/profiles/76561198108803496#!/compare/1528070400/1528761600

https://backpack.tf/item/3806220089

Sale 2) Sold for 10 Keys + 0.11 Refined

https://backpack.tf/profiles/76561198301284448#!/compare/1525651200/1526083200

Rounds to 10 Keys

Sale 3) ?

https://backpack.tf/profiles/76561198349886701#!/compare/1529366400/1529452800

https://backpack.tf/profiles/76561198134105459#!/compare/1529366400/1529539200

https://backpack.tf/item/3335344898

Sale 4) Sold for a Kill-a-Watt Sultan's Ceremonial (10 Keys)

https://backpack.tf/profiles/76561198055518037#!/compare/1530921600/1531267200

Sultan Mini

https://backpack.tf/profiles/76561198515764827#!/compare/1530835200/1531267200 - Sold for an Orbiting Fire Big Elfin Deal (10.5 Keys)

https://imgur.com/a/LNOthT8 - 1 Month Unsold at 9.63 Keys

Taking 9.5 - 10.5, which averages to 10 Keys

Elfin Micro

https://backpack.tf/suggestion/5b485f8144325a434c1e60d1 - 10.5 Keys

Sale 5) Sold for a Kill-a-Watt Tin Capotain (9.25 Keys)

https://backpack.tf/profiles/76561198202370501#!/compare/1531267200/1531353600

Low outlier.

Capotain Mini

https://backpack.tf/suggestion/5b486298cf6c7530f5714be6 - 9.25 Keys

https://backpack.tf/item/2631328381

Sale 6) ?

https://backpack.tf/profiles/76561198396499936#!/compare/1531180800/1531267200

https://backpack.tf/profiles/76561198171059451#!/compare/1530748800/1531267200

Sale 7) Bulk for a Cloud 9 Nuke

https://backpack.tf/profiles/76561198171059451#!/compare/1530748800/1531267200

https://backpack.tf/profiles/76561198218497692#!/compare/1531180800/1531267200

Sale 8) ?

https://backpack.tf/profiles/76561198218497692#!/compare/1531267200/1531353600

https://backpack.tf/profiles/76561198217554353#!/compare/1530748800/1531353600

The Scattergun's history matches. This is what confuses me about the sale.

https://marketplace.tf/items/100;5;u56 - Sold for $27.86 when Keys were ~$1.94 each (14.36 Keys)

High outlier.

https://imgur.com/a/5OapMKJ - Calling 9.25 low because of this Buyer at 9.25 Keys

https://backpack.tf/u/76561198316961222