The idea of long term wilderness survival is laughable for anyone outside the most remote areas of North America. You don't have to worry about shooting a deer for EM food, you don't have to worry about edible plants, you don't have to know how to rub 2 sticks together for fire, etc, etc.
.17hmr for deer is a worse idea than worrying about long term wilderness survival. In a handgun no less. Good thinkin.
Even IF by some hand of god you are thrust into a situation why if the world would you want to TRY to kill something with a vastly underpowered gun. OK, a rimfire will kill a deer. Been done. I'd rather shoot something with more gun than I need to get the best possible odds of DRT instead of chasing some wounded critter all over gods green earth burning energy I wouldn't be able to spare.