Hi all. New to the forum. Joined to stay "in the know" about long range hunting and shooting. After reading and searching the web, I have a lot of questions but I will start of with a these 3: 1) Is it possible to build a "frankinstein" where you buy sepreate bolt/action combo, barrel and stock combo, and have the gun accurized? Or is it required to start with a factory gun? 2) In selecting an action and bolt what should I know and look for? Can more than one bolt work for a particular caliber? Or is there only one type of bolt that works per caliber. Example: I am looking into building a .338 RUM or Lapua. Can I get a bolt and action setup from savage, rem, and others? Or is the caliber somehow connected to the brand of action and bolt? Is the setup for the lapua compatible with the setup for the RUM? If not, then what is different? How does the chambering of the barrel affect this decision as well? 3) I looked at other custom rem 700's and there barrels seem to be rather thick. What do I need to look for when choosing a barrel and stock? How do I know the barrel will match the channel on the fore end of the stock here the barrel will be seated? If I buy a factory rem 700 and buy a long range barrel will it fit into any rem 700 stock? Or is there something I need to know in order to insure compatibility the differenct factory stock and aftermarket stock types? I also see "#5" and "#7" in reference to barrel data. What do these numbers mean and/or reference? I asked alot, i do realize. This should help get me to the next plateau of knowledge and rescue me from some of my ignorance. Thanks for all who can help me get pointed in the right direction.