Feelling like I need more
More people are killed by .22's each year than any other caliber. They don't have immediate stopping power like larger calibers, but no one wants to be shot by any caliber. You have large capacity magazines, which is a plus. I have 4 shotguns. I just bought an 870 tactical, has ghost ring sight, holds 8 rounds, and is an awesome gun. It costs around $ 500. There are 870's much cheaper, however. All of my other shotguns are semi-auto. All are 12 guage. I have an 1100 which has a barrel with rifle sights, holds 9 rounds, and shoots like a dream. I think you should get a shotgun. A 12 guage 870 would be a good one. Having dealt with criminals for 30 years, nothing makes them mess their pants quicker than the sound of a pump shotgun chambering a round. I had two Mossberg shotguns with ghost ring sights. Having shot Remingtons all my life, I could not get used to the safety on the top, so I sold them. They were good shotguns, and would be fine for someone who didn't care where the safety was. Best of luck