if you hit the heart it quits pumping they don't bleed like just a lung shot
If you hit the heart with a rifle and blow it up it quits pumping. The last few I shot through the heart with a bow all bled very well. One of them so well Ray Charles could have found it at midnight it he took his shoes off. The last 30 feet it covered was a red swath 4 feet wide, and the deer was shot through the heart top to bottom with a Muzzy 3 blade. Sometimes it might not pump anymore. I have seen them pump huge spurts after heart hits, Spurts big enough to see across a mowed area with a flashlight for almost 100 yards.
