Classifieds:

http://backpack.tf/classifieds/?item=Carbonado%20Botkiller%20Scattergun%20Mk.I&quality=11&tradable=1&craftable=1 - (3 at 10 ref, 15 at 11 ref, 1 at 11.22, lots at 12 ref)

Sellers at 10 ref:

http://www.tf2outpost.com/trade/24971724 - unsold (less than 1 hour)

http://www.tf2outpost.com/trade/24966626 - unsold (11 hours)

http://www.tf2outpost.com/trade/24965160 - unsold (13 hours)

http://www.tf2outpost.com/trade/24928531 - unsold (4 days)

http://www.tf2outpost.com/trade/24912821 - unsold (5 days)

Sellers at 10.33:

http://www.tf2outpost.com/trade/24968238 - unsold (6 hours)

http://www.tf2outpost.com/trade/24911239 - unsold (5 days)

http://www.tf2outpost.com/trade/24911553 - unsold (5 days)

Sellers at 11 ref:

http://www.tf2outpost.com/trade/24971635 - unsold (less than 1 hour)

http://www.tf2outpost.com/trade/24966475 - unsold (10 hours)

http://www.tf2outpost.com/trade/24964807 - unsold (14 hours)

http://www.tf2outpost.com/trade/24961840 - unsold (18 hours)

http://www.tf2outpost.com/trade/24933324 - unsold (3 days)

http://www.tf2outpost.com/trade/24939000 - unsold (3 days)

http://www.tf2outpost.com/trade/24921682 - unsold (4 days)

http://www.tf2outpost.com/trade/24917285 - unsold (4 days)

http://www.tf2outpost.com/trade/24926191 - unsold (4 days)

http://www.tf2outpost.com/trade/24900457 - unsold (6 days)

http://www.tf2outpost.com/trade/24866514 - unsold (1 week)

http://www.tf2outpost.com/trade/24879268 - unsold (1 week)

Sellers at 11.22:

http://www.tf2outpost.com/trade/24938438 - unsold (3 days)

Sellers at 11.55:

http://www.tf2outpost.com/trade/24929354 - unsold (3 days)

Sellers at 12 ref:

http://www.tf2outpost.com/trade/24971487 - unsold (1 hour)

http://www.tf2outpost.com/trade/24968225 - unsold (6 hours)

http://www.tf2outpost.com/trade/24963857 - unsold (14 hours)

http://www.tf2outpost.com/trade/24951355 - unsold (1 day)

http://bazaar.tf/trade/1208968 - unsold (1 day)

http://www.tf2outpost.com/trade/24953600 - unsold (1 day)

http://www.tf2outpost.com/trade/24960094 - unsold (1 day)

http://www.tf2outpost.com/trade/24951355 - unsold (1 day)

http://www.tf2outpost.com/trade/24946221 - unsold (2 days)

http://www.tf2outpost.com/trade/24929576 - unsold (3 days)

http://www.tf2outpost.com/trade/24935847 - unsold (3 days)

http://www.tf2outpost.com/trade/24922695 - unsold (4 days)

http://www.tf2outpost.com/trade/24927391 - unsold (4 days)

http://www.tf2outpost.com/trade/24921185 - unsold (4 days)

http://www.tf2outpost.com/trade/24907630 - unsold (5 days)

http://www.tf2outpost.com/trade/24882889 - unsold (1 week)

http://www.tf2outpost.com/trade/24856892 - unsold (1 week)

http://www.tf2outpost.com/trade/24837967 - unsold (1 week)

http://www.tf2outpost.com/trade/22261254 - unsold (5 months)

Sellers at 10-12 ref:

http://www.tf2outpost.com/trade/24961794 - unsold (19 hours)

http://www.tf2outpost.com/trade/24949730 - unsold (2 days)

http://www.tf2outpost.com/trade/24942354 - unsold (2 days)

http://www.tf2outpost.com/trade/24881868 - unsold (1 week)

http://www.tf2outpost.com/trade/24792696 - unsold (1 week)

http://www.tf2outpost.com/trade/24814684 - unsold (1 week)

http://www.tf2outpost.com/trade/24825037 - unsold (1 week)

http://www.tf2outpost.com/trade/24813276 - unsold (1 week)

http://www.tf2outpost.com/trade/24710349 - unsold (2 weeks)

http://www.tf2outpost.com/trade/24654083 - unsold (3 weeks)