When it comes to home defense, few weapons are as effective as a shotgun. But the shotgun is only as good as what's loaded in it. Walk into any gun store and you'll find dozens of options — buckshot, birdshot, slugs, reduced recoil loads — and it can get confusing fast. This guide cuts through the noise and tells you exactly what to load in your home defense shotgun and why. Why Shotgun Shell Choice Matters for Home Defense A shotgun loaded with the wrong ammunition can mean the dif …