There are two principle changes to the rifle. First is the stock. Weatherby has scrapped the old, clubby stock for a new one that follows the lines of the original Mark V stock very closely, including the wonderful, slim pistol grip. Second is the trigger, which is now a true two-stage mechanism that is virtually perfect. No creep, no drag, dead-clean release, 3 ½ pounds every time, and if you even think of messing with it you're nuts.