My classmate over at Shooting Sports and Tough Times wrote a very good article on Pellets rifles for a SHTF scenario. I've been encouraging him to submit it to Survival blog, and perhaps during the semester break he'll work on it. Anyways, check out his essay, argument, and provide some feedback into what you think. We'll both be grateful for your time.
I'll be investing in two air rifles for my boys. It's a good training rifle, and a lot cheaper to shoot than 22LR.
Take Care and Keep Prepping - K