Let me ask you this, in the situations you used a gun for self defense, was it a shotgun?
I'm not against owning guns or buying them for self defense. I'm kind of on the fence about concealed carry but that's not what this thread is about.
I took my 12 gauge shotgun to the range about a year ago and blasted holes in some zombie targets with it. Good fun but they can be a bit unwieldy and punishing to shoot. I don't have a problem shooting it but to say it has no recoil or mild recoil is just idiotic. A decent recoil pad would probably do a lot to tame that but the recoil pads most shotguns come with are pretty much an afterthought and the cheapest possible solution. Wrapping a gel filled maxi-pad over the end is not an ideal solution either. You really want to have the stock shortened by the amount thickness the recoil pad will add. You want someone who knows what the hell they're doing to perform this kind of work.
First time I ever shot a handgun I was punching holes in the center of the target at 15' with no problem and this was with a .38 special and a small frame HK squeeze cocker 9mm handgun. Shooting a handgun is not rocket science.
I own a .44 magnum revolver, a .44 magnum lever action rifle (which actually packed quite a punch to the shoulder as it was sold-I had a gunsmith shorten the stock and put a thicker recoil pad on it and it is much better now), two 1911 style .45 ACP semi-automatic handguns (one Colt and one Ruger), a Beretta Tomcat (which is almost completely worthless-I almost never shoot this gun because it is a fucking firecracker), a Glock model 17 (9mm), a Winchester model 1200 12 gauge pump, a Beretta 20 gauge Over/Under shotgun, a Ruger 10/22 rifle, a Ruger Mark III .22LR pistol, a MAK-90 and a Winchester .300 WIN MAG hunting rifle (you want to talk about a shoulder punisher, holy fuck was this one as I bought it). I feel like I'm leaving something out... oh well, I'm not opening the safe to take inventory. 😀 This is not even including guns I have owned in the past and sold off and I've shot a whole host of other guns over the years. You name it, in civilian, legal to own weapons, I've probably shot it.
I'm thinking of adding a Glock model 30 (.45 ACP) to my collection.