If a bear surprises you, and the same goes for lions, you won't have to worry about packing. You'll never clear leather. I've spent a huge chunk of my time in really wild country, here in Idaho. What I carry is a big , very sharp, knife. I guarantee ya, in a real pinch, that knife will do more good than a handgun. But, you're going to get chewed-up no matter what. The speed and ferocity of wild animals is hard to imagine, if you haven't seen it.
Jim