All I can say to anyone who has to track a deer more than 5feet after a double lung shot is ,Make sure you know where and what lungs are on a deer and maybe try a lighter bullet to expand better.I hear people talk about deer running after double lung shots on here.There is no excuse for it if you use the right ammo and know where to aim at.If I shoot a balling ball at you and hit your stomach,I don't care how pumped up you are.Your not running no where.It knocks your breath out of you.I blow up both lungs on a deer.It is dropping in it's tracks,Period. It's all about shot placement and the right ammo to get the job down as quickly as possible.I do question peoples knowledge of the anatomy on deer.Where the vitals are. I all soenjoy people praising their guns only to have to track their deer.