Need a little advice on my first build. I have a Rem 700 LA mag receiver with a mag boltface and I want to build it into a 300RUM. I am thinking of sending the receiver to Pac-Nor to have them true the receiver and put the barrel on as well as install a Badger FTE brake on it. What length, contour and twist barrel should I ask for? I am planning to go with their stainless barrel if that matters? I am also ordering a Mcmillan M40-A1 HTG stock for it and I'm wondering if I should get that pillar bedded? I like to take the barreled actions out of the stock when cleaning and thought the pillars might help hold POA/POI better than no bedding. Can anybody see anything I should do different with what I am doing here? Thanks!!