I just put together some preliminary loads for my Sako .308 as well. Hornady 150gn SSTs and Nosler 165gn BTs. I love 150s in .308 but I also have about 700 of the 165BTs on the shelf I can work with. Both over AR2208 (I think you call it Varget in the US) powder. These first few are for pressure then when I get to a range I will check for accuracy. I am off bush for a week from the 24th but have no view I will be running any of the new loads by then.

When I shoot for accuracy I have a 20x Leupold I mount on the Sako to take some of the guesswork out