I could not get the Hornady 180 SST to shoot really well in my Tikka and never tried the 165 gr. I am able to get the Nosler 180 Accubond and 150 Accubond to shoot well. Here was my final Hornady recipe:
64.0 gr H4350, CCI 250 primer, Winchester brass, Hornady 180 SST, COL 2.86, 5 shot group 1.25" @ 100 yards.
This is a max load per the book so start at 60 gr and work up from there.