It wasn' t a double lung then. No way is a double lunger going more than 75 yrds, 100 on a strecth. I too wish you had it on film to verify. A single lung hit deer will go on and on and on and it sounds like you could have pushed it too soon. Is there any possiabity you could be wrong on what you think you saw with the hit? Not being a wise guy here but I see no other reason for what happened. I suspect you got one lung and not two.