RE: .17 caliber
I can understand using the .17 HMR on animals up to coyotes at reasonable ranges and if you are particularly careful about the shot placement. But to suggest their use on deer and bear???? Well, you can take a bear with a pocket knife....but I wouldn't call it intelligent. And I know of the stories of bear being kill with a .22LR...but that doesn't mean it was a responsible thing to do. (If you are in a truly SURVIVAL situation...that is different.) But anyone that pulls those "stunts" under the guise of sport hunting. Are not very sportsman like!
It's bad enough that hunters get lumped together with poachers and other criminals....without going out "with a point to prove" and attempting stunts at the risks of the animal's suffering. We can't have it both ways! Either we act ethically.....or we don't!