Until the OP says what bullets he wants to shoot, it's all speculation on "what if's".
aalf,
My first preference is the Nosler 168 BT, after that it wouldn't matter that much between the 165 BT or 168 TTSX.
There was some mention earlier about cold conditions. Sometimes I do hunt in Alberta, Saskatchewan, Kansas and northern Missouri. It can be cold in late November in some years.
Thanks,
