Hi, im planing my long range hunting rifle, and need some input on my barrel. The caliber is 7WSM and stock is Mcmillan HTG adj. I'm shooting with suppressor on. My gunsmith has Krieger SS 1:9twist with maximum 28" lenght and 1,2" in diameter. What length and barrel contour would you rec for this set up before it's not hunting friendly....? I will use either A max 162grs or Berger 180grs Hunting VLD with H4831SC or R22? Any rec for chamber spec's?