Re: 300 or 7mm
Just out of curiosity, if your going to do up a 7mm to the way you want, why don't you look into the 180 Bergers instead of the 168's?
As far as everything else go, personally love both calibers, have both, but I'm the opposite I love my 300. Winny a with the 210 vld's! Hoping to rebarrel shortly and get the 215's running down the tube. Got a moose hunting coming up shortly!