I still think 10.5 but I'll give you some more points of reference to help you out. Also this is my fave pair of boots. The colour, suede, texture, fit, profile, is just perfect. You won't go wrong.
I'm 8.5 on brannock (slightly over? not sure).
AE 5 - 8.5E
Alden Barrie - 8D (slightly tight/need break in)
Alden Modified - 8D (slightly tight/need break in)
CP Achilles Mids - 41
Wings Horns Lo/Mids - 42
Iron Rangers - 8D
New Balance - 9