Re: .300 win mag
That is a real decent setup! The caliber is great for long range especially with Berger or Serria match king bullets. Easy to get lots of factory loads for and if you reload the options are almost endless with the 300wm. If the supergrade is something you have offered to you at a good price and prefer it then go for it. I have found I like the durablity of stainless steel and fiberlgass stocks. But like with bows, there are lots of preferences and options. The set up you mentioned will be a great way to see if you like this long range stuff. My best advise it get quality equipment and practice and learn as much at possible before making pokes at critters.
Good luck and happy shooting.
" People sleep peacably in their bed at night only because rough men stand ready to do violence on their behalf " - George Orwell
I am the way I am because I watched the movies "Red Dawn" and "Tremors" at a impressionable age.