Around here, we don't hunt with dogs, just use them to track wounded game in case something went wrong for the client. These dogs are of German or Austrian descent, can't remember the name - odd name at that and of course Boberman colouring but more houndish in appearance and they do not tree a bear, just locate it and direct the hunter to it. Growling means it's still alive - silent and the animal's dead. Will not track an animal if it isn't hard hit - amazing dogs.
I like exits and that's why the 265's in the .44 mag and .444 as minimum. Had good luck with 300gr. Hornady XTR - seem to be a fairly tough bullet on broadside shots. 350 Barnes X (or TSX now) is a great bullet at over 2,200fps for most game animals.