The question is what is the 38 back-up for. If it's a pack of ferral dogs, a bad man or somthing on that order, the 38 will fill the bill. Cougars, and things with claws need something with a little more umph as I understand it. Grizzlies are a different thing altogether. Saying that, a modern 38 can be loaded quiet potently but not on a steady diet. If a 38 is what you have and nothing else, and intend it to be something for the trip only, I'd stoke it with a +P load and a hard, 158 grain SWC or Keith bullet. Look at Unique for close to 1,100 f/s. Ain't a 357, but if you need it, who cares if it shakes loose a little faster than it should.