Originally Posted by
Sawin
LOL come on guys, the OP is asking about hiking and back country camping, not preplanned long-term survival in the woods. This would imply that lightweight is a fundamental requirement. No one carries a shotgun or combo gun when they go hiking, (maybe ATV'ing) and folks certainly don't fill their day packs with sundry shotgun loads.
I stick by my earlier answer that a smaller load like 9mm is sufficient for this scenario without burdening oneself with a bunch of unnecessary weight. The last thing I'm taking when I go on a hike or couple day backpacking trudge is a shotgun. If we were in Alaska, this would be a different conversation. :)