i'm getting the final funds together to order my 700 rebarrelled by pac-nor to 6.5 stw. i would like to hear your opinions on barrel twist and contour. my plans are for this to be a sporter-weight carry gun 9-10 lbs max. i'm looking at shooting only 140 grain bullets. here's the problems 1. should i go with the 1-8 twist or 1-9 i'm thinking 1-8 2. pac-nor makes a 3,4 or 5 groove barrel i'm thinking the 3 groove would give me better throat life. 3. i what the barrel to be 28" should i go with the number 4 or 5 contours. in order to make my desired weight. i want the barrel to be stiff enough. what do you folks think most of you have much more experience at this than i do.