I am currently shooting a Hornady 130 sst for whitetail and have also shot 130 gr Remington corelockt. I almost never get an exit wound. If I switched up to the 150 gr would that give a better chance at an exit wound. I shoot the 130 due to longrange performance. One of our best box stands requires shots out to 300 or even 400 yards to cover the whole field. I want the exit wound for a better blood trail if trailing is required. I have also considered moving to a 7mm but I like my 270. Easy on the shoulder.