I hit a doe somwhat like that this gun season, from about 20 yards away with a .270... took out lung/someheart... She walked about 70 yards away,, stopped stood there, and i could watch the blood drain out of her in a steady stream, not as bad as in the video clip, but it was draining out.
I figured she was done for,, but she was alive for a good 15 minutes,,,, i kept the scope on her cause she kept trying to get up,, but coudlnt... after 15 minutes, i decided she wasnt getting up but was still alive, so id get out of my tree stand and cut her throat, but thankfully she was expired when i got to her.
where she stopped and i could watch it drain,,, i actually thought there would have been more blood here then what there was.