win mag

Hello Developing a load for 300WM. Been using the few once fired Federals I have but sorting through my once fired Sako brass, most have the same mark / defect / impression in the case wall. Both the Fed and Sako were shot through the same rifle, Sako brass all from same batch. Just in case...

Evening all I seem to be going in circles so ideas welcome please. I am after a 300 win mag rifle, mainly for trips to Scotland and hopefully overseas at some point. I prefer fluted barrels and synthetic stainless build. I am a 308 user but thinking about a mid weight rifle for win mag to...