Could be, I was only suggesting a possibility, which brings to mind another question ..which my veterinary friend couldn't answer.
Years ago, I was hunting in a dense hemlock growth (H&R 44 mag). Seeing deer legs below the lower limbs about 30 yards from me, I waited until I could identify a buck and get a heart shot. Soon as I could, I put a 240 gr JHP right there..
The deer didn't move...! I quickly reloaded and shot for the same placement, whereupon the buck took off, ran about 10 yards an drove into the ground.
Although I was using irons, I had just checked my 'sight-in' the day before and couldn't believe I had missed.. Imagine my surprise when I found two holes perhaps only 1" apart !
Why didn't that buck, run, fall, jump, flinch or something ?