surplus 150 grain fmj's would work great as long as it's legal. in florida you can't hunt with or carry fmj's on your person. if it's legal it would be your best bet. you could put it through at least one shoulder and ancor it and you would still have a nice neat .30 caliber hole. if you could get a neck shot or non "heavy" bone hit i would doubt that the coreloct would have time to expand. yotes are alot smaller than most people think so i would doubt it would expand. but i could be wrong.