For anybody thats hunted caribou. I shoot a 30-06 for deer with factory 165 grain corelokts. These bullets don't hold together too well when they hit the rib of a deer, so using them for 'bou is out of the question. I will probably use Federal or Remington 165, or 180 grain Nosler Partitions, and was wondering if I would need the high energy or standard loads? Also how long are the shots on 'bou usually? I shot my deer last year at 325 yards.