>>1184208These two are basically interchangeable for backpacking, the only real reasons to bring the AR7 over the 10/22 is to save a small amount of space/weight and if it's down pouring the AR7 is completely self contained and can keep all of its components dry/rust free.
When car camping or overlanding I usually bring my WASR 10/63 AKM for shits and giggles, and when just hiking I either carry a Glock 23 or 27 depending on how long the hike is.