I am looking for real world views and explanations of bullet types.

Boat tails, Nosler, partition ???????

can someone explain what these are good for and when to use these instead of just standard core-lokts or XP2's?

i am wondering if this stuff is just marketing hype and if not, when to use each type in what situation?

currently shooting a 7mm-08 and 30.06. Hunt mostly white tail deer, but may hunt bigger and better game in the up coming year.