What shotgun works best for home defense?

Alan

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I've been thinking about getting a shotgun for home defense, and I'd love to hear your experiences. I'm stuck between the 12-gauge and the 20-gauge. Sure, the 12 has that extra stopping power, but I’ve heard the 20 is easier to manage, especially in tight spaces. What's been your experience with both?

When it comes to features, what's important? Barrel length, stock setup — any insights would be great. Reliability is key for me, so I’m also curious about brands or models that have worked well for you.

And what about training? I’ve used shotguns a bit, but not extensively. Any tips on how to get into serious practice to feel prepared? Appreciate the help!
 
I use a Mossberg Shockwave in 12ga.
Mind you, this has a 14" barrel and a birdshead grip.
It is short by any standards, but that makes it easier for me to wield.
A lot of people have troubles trying to control a shorter barrel shotgun buyt I find it incredibly utilitarian.

Remington has their version in the Tac14, but I prefer the tang mounted safety on the Mossberg.
These come available in 12ga,20ga, or .410 bore.
The 20ga.ight well be easier to handle, but I would advise against the .410 bore for home defense. Just not enough stopping power.

Now, if you go with either the Mossberg or Remington, you need to check out the OpSol brand adapter that allows you to load and cycle the Aguila mini-shells.
These are supposed to be full power loads, but only 1-1/2" long so you can get many more in the magazine.
Mini-shells available in slugs, bird shot, or buck shot.
I choose 00buck.
 
Shockwave it is. This one lives on the coat rack, inside my back door. Great little shotgun. As above, outfitted with the adapter for the short shells.

Shotgun.webp
 
Remington 1187 Priemer Trap. I put my smooth bore slug barrel on it is the only concession to HD defense and I use the same gun, same configuration for just general killing every thing annoying me around place. It has been totally reliable for "killing" thousands of flying things moving a lot faster than anything on the ground or in the house ever will. I've probably shot it more times are more different things from clays to birds to beaver, chipmunks and squirrels. I recon it will put a load of 00 buck where I want it to go, it sure hurts those beavers pretty good.

Taking a perfectly good shotgun and cutting it up and adding a dozen battery operated doo dads and strings amo all over it and then shooting it 2 times a year just doesn't make the slightest sense to me for something you EXPECT to bet your life on. Looking good in a movie isn't going to stop you getting your ass kicked and your family killed and or robbed.

When I have to reload in the dark, I'll be reloading something I reloaded a thousand times every year for 20 years or more. When I have to POINT and pull the trigger it will be with something throwing 9, 30 cal pellets every time I pull the trigger and I can stick another one in with out unloading or taking it out of the fight.
 
For inside the house, I have a 12 bore Mossberg Shockwave with the OpSol adapter & loaded with Federal 1¾" No. 4 buckshot. If the fight goes outside, it's my 12 bore Mossberg 590A1 loaded with 2" 00 buckshot from NobelSportItalia.
 
I went with a 20-gauge pump for home defense a few years back. Lighter recoil made it way easier to train with, especially indoors. I ran drills at the range till cycling became second nature
 
Stock?

I want a full stock on my shotguns unless I absolutely can’t have the length. I’m not giving up the main anchor point without getting something truly necessary in return. If you go to a shotgun class, which I 100% recommend, you will be struggling with a stockless shotgun. If it’s a struggle there, I don’t see how it wouldn’t be a struggle at home.

However, you will find you probably want the stock to be relatively short on a shotgun. That is hard for some to wrap their head around because it sounds counterintuitive. It’s kind of hard to explain but I’ll try.
People tend to take a sort of rifle stance with a shotgun, with their body at least partially turned/bladed toward the target. You (usually) want to be more squared-up to the target. More recoil control is just one reason. When you are turned that way, you turn your strong side shoulder toward the target, and by a fair amount. Doing that… You just pushed the shotgun farther away from you and it gets clumsy and maybe even hard to mount. Shorten the stock a little, and it’s back where it’s more manageable.

The typical correction after doing that with a standard stock is the butt plate gets pushed farther out until it’s more on the bicep. We don’t even know we do this until we see the bruise the next day. If you push it any direction, it should go inward, not outward. Again, more control that way.

The youth stocks they put on shotguns now are usually about right.
If there is a question, err towards too short than too long.

There is also the possibility of others in your house ever needing that shotgun. Anyone can use a shotgun whose stock is too short. It doesn’t work the other way.

Not to mention if your wear body armor, cool-guy chest ammo carriers, etc, adding to the pull length.


12 or 20 gauge?

The 20 tempts me now and then, but the12 gauge has a LOT more options. Shot size, power level, tight patterning wads, spreader wads, mini shells, etc. Not the least consideration is the cheap 100-packs of practice shells are a lot easier to find for 12 gauge.

The favorite shell of most who have tried them is the Federal with Flite Control wad. Patterns are crazy tight. Hornady has one that is similar. There is a variety of these in 12, but Federal only announced a 20 gauge version this year. I have not heard if anyone has actually seen them yet.

I tried the 20 gauge for lighter recoil approach once, and what I found was most 20 gauge guns were enough lighter that it evened out at the butt plate. Maybe that has changed. A good class to learn the techniques to manage the recoil did me a lot more good.


Sights- plain bead or actual sights?

You will be told that the bead is better because it’s faster. It probably is if you’re a bird hunter or clays shooter and use one a lot, and I mean a lot. If you aren’t a dedicated shotgunner, you probably mostly use guns with sights on them.
So what are you used to seeing when the butt plate hits your shoulder?
People will say they tried sights like a ghost ring rear and couldn’t get used to it. Ask how long they tried. The honest answer is usually not very long. Like most things, you do have to give it a chance.

“But you don’t need to aim a shotgun” is what you’ll hear. If we’re talking about inside a house, which usually means inside a room, how much do you think the shot pattern spreads? Just about nothing.
Hang some paper up, back off three yards and shoot it with a shotgun. Any shell. Any choke. Within a house, you are basically shooting a big rifle loaded with a fragmenting bullet.
Can you miss inside a house? Yeah, you can.


Action type?

Here it is.
The can of worms.
Most prefer a pump or semiauto of course. If I was honest, a double will probably handle anything any of us would encounter at home, but counting on the minimum is not always the best plan either.

The pump has the reputation of being more reliable because it depends on user power for operation. It probably is more reliable if the user is reliable. That’s why I hesitate to simply tell people to just get a pump: I don’t know how reliable the user is.

Painful truth:
I’ve seen both action types fail for mechanical reasons, but I’ve seen more pumps fail due to the user than all the semiautos I’ve seen fail at all.

Second painful truth:
The semiauto problem usually gets fixed. The pump problem usually gets excused.

The semiauto problems are almost always ammo. Some may not work with those 100-rd store boxes of ammo. Most don’t care, but some do. What I’ve seen with that ammo is, since the “brass” part is usually steel nowadays, as it expands when fired it stays expanded instead of springing back as much as brass. Then it’s grabbed the chamber walls. Almost every time I see a semiauto having trouble, that’s why. If not, it’s a lack of lube, but that is its own sad story.
There are two cures if it’s the ammo sticking: 1) Get the chamber polished. 2) Change ammo. Whichever route is taken, once it’s done, everything is fine.

The good news is, almost all semiautos work just fine with the good stuff, which is what you should be using at home anyway.

I’m not saying one action is better than the other. I’m saying both can and do have things that happen. One is corrected by putting in the work, and one is corrected by ammo.
I’m a believer in letting the gun do as much work as possible. The less I have to keep straight when my world is going straight to hell the better.

Huh. Well. Other than that, I have no opinions on shotguns.
 
Ole Mossberg 500A (12ga.) for me.
My old Mossberg has had a LOT of loads through it-Mostly Dove/Quail in my younger days.
It sits close by, with a 18" Riot barrel, stoked with #4 Duck loads for my short range home defense.
There is a LOT of different choices/ideas on home defense in the shotgun mode...
 
I don’t think it makes a lot of difference as long as it’s reliable, and you are familiar enough with it to operate under pressure. Probably a shorter rig than your hunting shotgun. It needs to be easily maneuverable in tight quarters.
 

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