i am starting my new build. i need input from you guys on my light weight hunting rifle. i want to try to build this rifle under 7lbs. i have a long action magnum remington action. thats where this begins. im thinking 300 rum shooting 210 bergers. im thinking 2.5 lbs action----2.5lbs barrel----1.5-2lbs stock is this possible? what do you guys think about shaving some of the action for weight? do carbon fiber barrels weigh light enough? what contour would work here? who makes the best light stock? would you go carbon fiber here also?