I'll second Varget and offer some pointers.
I suggest you start at about 42.0gr and work up. The Hornady manual lists 44.0gr as max, but Hodgdon goes up to 46.0gr; I believe that's because anything over 44.0 is compressed, but keep it in mind.
FWIW, I shoot 165 SSTs out of both of my Remington bolt guns with 44.5grs Varget and Federal 210s. It's slightly compressed at 2.750 COAL with no signs of excess pressure. If I do my part it's very accurate and consistent with SDs typically under 5fps... I shoot a 700SPS and a Model 7 Kuiu (both 16" barrels) and get about 2,650/2,630 at the muzzle with these loads out of each rifle, respectively.