Each hit produces it seems a different type of blood trail,even if the same organs are hit. I got the left lung and took out the liver of my first Doe this year. She took off like a rocket,hit a barbed wire fence bounced off it,then jumped it,then fell to the ground,then got up and went another 30 yards.When I gutted her she had blood pooled up inside her and her liver was like jello and had 2 ribbs cut clean through. They are simply determined to live and get to their safe place while running dead on the hoof. Amazing animals.