I have decided to build a rifle that was going to be a dual purpose weapon for hunting and competition but after feedback and the realization tht I hunt more than comp shoot it will only be used for hunting. Below I have included specs about how I would like it to be, any info on my barrel choice, optics, action and caliber would be greatly appreciated. Also, trying to keep the wieght down as much as possible Because I ill be hunting in mostly wooded areas but eventually in Canada and in mountain like areas as well. The game I am looking at mostly hunting is Whietail, Elk, Bear, Ram(big horn sheep) and eventually an African Hunt or two. Any suggestions or possible better products than what I have is more than welcome, this is my first custom job and would lke to do it right and be able to pass it to my son.

Remington 700
Stiller Predator action
Broughton barrel, chmbered in 300 Win Mag or WSM
McMillan A5 stock with adj cheek and LOP.
Rifle Basix trigger
Stiller lug
Stiller 20 MOA pic. rail
Badger rings
Leupold Mark 4 6.5-20x50mm LR/T M1 illuminated mil dot
Badger Muzzle brake