Again, I mention the photos in John Jeanenney's book, Tracking Dogs for finding Wounded Game and the photos of lungs with broadhead scars. No void but a passthrough the lungs and a live deer. If you catch the upper lobes of the lungs, there are less blood vessels than lower in the same lungs, if you don't collapse or bleed out the animal, they can and do live.

I also question those that claim erroneously that they hit the "void" because they did not recover the deer, had you see the animal live again or simply dismissed the lack of tracking as a "void" shot.

I also question those that feel the lungs are actually farther back than they are. Perhaps what you thought was a "void" shot was actually a shot behind the lungs, or even forward where the lungs slope downward. Especially in the shoulder area, it's very easy to go high of the lungs, the spine slopes down extremely here too, you can be above the spine and lungs and still think you went through the shoulder/ body cavity.