Couple of firsts so please bear with me... First time poster (New to forum, glad to be here) and new 340 Wby owner (found a used "deal" I thought I couldn't pass up). It's a stainless Mark V (SS serial) with a Briley brake, Leupold rings/mounts and a 3-9 x40 Zeiss Conquest . The previous owner claims it wasn't shot much-- as they all do! A little background info: amateur reloader (getting back into it after 10 yrs), have two .300 Win' s (my big guns) which have killed CO elk both times I've tried along with lots of misc critters. Finally to my questions: I have read about Wby freebore. Are all factory Wby rifles made this way? Do all the reloading data account for this? If so, where would I get data for a custom bbl should I decide to rebarrel (with non- freebore)? Thanks for the help, sorry about the long post.