I recently had a .300 Win Mag built and wanted to share.
Action: Stiller Tac300
Barrel: Hart, #5 contour, 24", 6 flutes, bead blasted
Trigger: Jewell, HVRTS
Mag: HS Precision, DBM
Stock: MacMillan, Remington Hunter
Rings: Seekins Precision, 4 screw
Scope: Horus Hawk 4X12X50, 30mm
I worked up several hand loads with the Barnes 180 TTSX and H1000, RL22, and W760 powders. The most accurate load was 79.0gr H1000 which chrono'd at 2789-2795, 5 shot group of .5" at 100 yds off of a bench. Not bad for a Grunt like me!