The best way to find out is take a few deep breathes then hold your breath and run like the dickens, when you have to take a breath stop and turn around and see how far you have gone.
In all my years of hunting I have had only 1 animal go 40yds with both lungs punched out that animal was a Water Buffalo.
If someone is telling you their deer went 200 yards or more, or worse yet never found with a " Perfect" double lung shot then there is more to the story.
My thoughts exactly