I just got the Leica 1600B I'm shooting a 300 ultra mag 230 grain burger tactical and Sytron scope 6x24 MOA . I will be hunting deer on power lines and pipe lines in Maine . My elevation will not change. Temps 10-30 deg . It will be all about speed the deer do not stick around too long on the powerline. That's why I was thinking of a ballistic turret ,hit them with the rangefinder know the yardage dial-in shoot. . Shots I will keep a max of 800 yards . Is this one of the situations with the ballistic turret is a good idea?