If you would like to try a 180 grain grand slam it may be worth your time. My family and friends have all started shooting them. We have killed everything from whitetail to dad killed hippo in Zambia last year with them. We've killed sheep, moose, caribou, elk, and dad's went to Africa six different times with them. I will say I've tried many different bullets, and do shoot different bullets in specialty guns but when your going on multi species you need a bullet to cover all and a speer grand slam does that for all of us. If your shooting a 300wm with a 26" or longer barrel try MRP powder or rl 25. All of our guns have 27" barrel. Good luck on your upcoming trip!