There's pretty good video "evidence" that a 30 hawkens won't effectively kill a deer. Quite frankly I'm shocked that this vital evidence hasn't been brought up, but none the less you should watch Jeremiah Johnson...again. His 30 hawkins couldn't kill a deer when he needed it to even though it was "all hawken". Now the 50 that he got from Hatchet Jack put the smack down hard on deer and if you look close you can even see the arm of Thor when he throws the deer onto the snow.