It will be dead eventually. The operative word is eventually, but maybe not. You need to understand the physiology of what happens. I’ll give you a personal experience. I shot a Black Wildebeest though both lungs using a Sierra Game King from a 300 WSM at 360 yds. Bullet never recovered but on the far side exited causing a 2inch exit hole. Animal ran off like nothing happened and we chased it literally for a mile or better before it went down! When we caught up to it it was still alive and breathing heavily causing a to and fro sucking sound through the large exit hole which had little blood coming from it. Had to give it a finishing shot. There was no exsanguination, tension pneumothorax. Probably would have died of exhaustion and starvation or been eaten by a predator. The problem was the large exit hole preventing a tension pneumothorax, a
and failure to hit a large vessel.