I got myself a Savage .410 C Series that was given to me when i was 10 years old. Haven't really touched it till recently. Some slight rust on the outside of the barrel. I took it to a local gun shop and they told me it's safe to shoot. I'm mostly curious as to what a .410 is good for, compared to a 20ga or any other larger shotgun. I've also been looking at handguns, specifically 'The Governor' (a revolver) as it also takes .410 shells. Would this be a good option for a self defense gun? My idea is worse comes to worse, I could use my Savage .410 and the governor as my two bedside tools. Maybe load up a couple slugs?? Sorry for the complicated (2-part) question. Thanks for your help!