I own 6 rifles, 4 of which are Sakos. Sakos are renowned for out of the box accuracy. The one Sako 85 I own is the Bavarian in .308. Super accurate, great trigger, with ability to use set trigger, well balanced & a pleasure to shoot.
A mate has a Sako 85 in 30/06 which he is also impressed with. No experience with the 300 mag though.