Grew up hunting with round nose bullets in 30 caliber. We hunt in the Mississippi Delta where there is a lot of flood plains, wetlands, Tupelo gum and cypress brakes. You wanted something that would anchor the deer on the spot. Nobody likes wading in 3’ of mud. 30/06 in 180 grain CoreLocks or 170 grain in 30/30 does a number on them. Have used a 243 in round nose also, 100 or 105 grain. Been a long time ago. Just makes sense.
