Shotgun vs. Rifle for CQB

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One reason I never really liked the AR15 for CQB, is because of one aspect of its manual of arms, the safety/selector. I had first learned the thumb safety of the 1911 pistol, in late 1982 or early 1983. One may think that, well, the AR15 safety/selector is operated in the same way as the 1911’s thumb safety, but I disagree, and assert that they are fundamentally different, because the 1911 safety is indicating the weapon is ready to fire, when the safety is aligned with the target/opponent, whereas the AR15’s selector isa pointed DOWNWARD, when the weapon is ready to fire semi-auto at a target/opponent.

In the Nineties, I learned to use several semi-auto pistols, with slide-mounted safety levers. The weapon is ready to fire when the safety lever is oriented in-line with the target/opponent. When such pistols are on-safe, the lever is pointed downward. True, the lever is not pointed straight downward, but the general orientation is pointed at the earth. Some of us may be old enough to remember the mantra, “Don’t get caught with your Dingus down,” meaning that one must remember to flip the slide-mounted safety lever upward, into the horizontal position, before firing.

In 2002, my employer, a big-city PD, re-started a patrol rifle program, which had been discontinued in 1983. Some consideration may have been given to Remington pump-action rifles, which I had mentioned to a committee member, but the approved rifles were the AR15 and Mini-14. The officer had to attend a 40-hour certification course, with each course being specific for the individual rifle. Well, there being no classes scheduled for the Mini-14, I reckoned that I would be using an AR15. Well, wouldn’t ya know; the AR15 is ready to fire when its Dingus is DOWN.

So, target-shooting with an AR15 was not a problem, but in a tense, close-range situation, I found myself manipulating the selector, with the ten thousand other things to think about, and sometimes getting hit with the cognitive dissonance caused when that selector is pointed DOWN, In readiness to shoot, when I am fighting two decades of consciously aligning safety/selector levers toward the intended target. (I was using 1911 pistols, for patrol, at this time.)

One solution, of course, would be to ignore the AR15’s selector, and let my trigger finger “be the safety.” This is especially tempting, as I was/am a lefty with long guns. In actuality, this cognitive dissonance only reared its head a very few times, on the street, as policy kept our patrol rifles cased, in the trunk, chamber empty, except for very specific and special circumstances. We could keep our shotguns up-front, with us, and get out of the patrol car with them at our discretion, so, the shotgun remained my usual long gun, in plenty of situations. I let my patrol rifle certification lapse within three years, and sold my Colt AR15A2 Govt Carbine to a colleague, who had younger eyes.

I later bought a BCM Lightweight Middy, so we do have a household AR15 carbine, for maintaining familiarity, and just “because I can.“ A couple of years ago, I added a Daniel Defense DDM4V7P, 300 AAC/BLK, with the “P” meaning “pistol.” It has a LAW folder, and a brace. I had thought is might make a nice “travel” weapon, but, thus far, I still like 4” to 6” .357 revolvers for road trips.

The shotgun remains my HD/CQB long gun, of choice. I am not trying to convince or convert anyone; it is simply my choice.
 
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Finally we can settle this old question once and for all!;):rofl: I will only attempt to answer this question for me personally with no expectation that it will apply to anyone else. I think a carbine is a bit more versatile a weapon than the shotgun, at least in a sense. A 12ga with the correct ammo is ideal for everything from rabbits and doves up to big bears, so obviously it's plenty for humans. Since it can do almost anything it's obviously versatile on many levels, but its range is pretty much contact distance to maybe 50-75 yards (maybe a bit more with a slug barrel, natch). For defensive use a carbine is good from contact distance out to a few hundred meters.

Of course, the topic is CQB. There I suppose it's almost a wash and comes down to what you're more comfortable with. I guess I personally am more confident and familiar with a carbine. That said I keep a Mossberg 500 as well. If there's a bump in the night my shottie would certainly get the job done.

If I had a tricked out Beretta 1301 though I might lean towards it even over the carbine provided it was going to be a fight at zero meters out to 50 feet.
 
I prefer my RDB for HD over the AR, as it's simply easier to wield in a house full of furniture, and that makes it better than my shotgun as well. However, My EDC is generally my go-to at first.
 
Since stopping power is important to you, can you share how you quantify and measure it?
Sure. Number of holes + amount of kinetic energy delivered per round.

Isn't stopping power important anytime defensive use of a firearm is discussed? If you don’t want to stop someone then why are you shooting them?
 
My .02 on what works for me & why:

I've taken both defensive shotgun classes (2) and carbine classes (4), use both in 3gun matches, spent 23 years of and on with the M16 and later M4 while serving in the Army. I say off and on because for part of it I was issued a 1911 and later a M9.

I keep a carbine for HD Because:

1. Reasonably effective when loaded with soft-points.
2. Light recoil, faster follow up shots. I'm not the only one that might use it and my wife shy's away from training/practicing with a shotgun, especially with buckshot or slugs. She has zero issue plinking with ARs. My 16 year old son is also pretty good with a carbine as I have trainers in .22LR & 9mm.
3. Higher capacity, might not need it, but it's there, so one less thing to practice. Reloads with a carbine are also much simpler than a shotgun and easier top perform under stress. Same goes for not having to work "slug drills", carbine has one type of ammo across the board.
4. Increased precision and range should it be needed. I live in the sticks, my carbine is 200% more likely (so far) to be used on a coyote than in an HD role. I've practiced "scalloping" targets with buckshot, easier just to put the dot on the tgt with a carbines single projectile.

From a training standpoint I've seen way more classes geared towards carbines than I have shotguns in my area.
 
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Sure. Number of holes + amount of kinetic energy delivered per round.
That's not very meaningful, really.

Energy and power are not the same thing.

Isn't stopping power important anytime defensive use of a firearm is discussed?
"Stopping power"???

"Power" is not what stops--nor is energy

What does stop is tissue destruction--what it is that is is destroyed within the body.

That depends up on the number of projectiles, the entrance point and angle of impact of each, penetration, and to a lesser extent, diameter.

Kinetic energy does figure in to penetration, but only as it affects force per unit area.
 
I find a short rifle to be much more accurate - or less sloppy - than a shotgun. I have two rifles in this category, an M1 carbine and a Rossi M92 copy in .44-40. Will do nicely in the house and a fair piece down the street, if appropriate.

I do have a Remington 870 (police version with evil black plastic stock) and I can shoot it well enough. But it is more painful than either rifle and in practice isn't much more sure.

When I was married (once upon a long ago) I had an M1 carbine (different one) as a house gun. The idea was my wife could use it. It was obvious to an intruder she was armed (as opposed to a small handgun), she had thirty tries and a bayonet. Anyone in close to their right mind would decamp.
 
That's not very meaningful, really.

Energy and power are not the same thing.

"Stopping power"???

"Power" is not what stops--nor is energy

What does stop is tissue destruction--what it is that is is destroyed within the body.

That depends up on the number of projectiles, the entrance point and angle of impact of each, penetration, and to a lesser extent, diameter.

Kinetic energy does figure in to penetration, but only as it affects force per unit area.

Stopping power is a term used so often and so badly that it has lost much meaning. To me what it really means is “wounding power” or, as you said tissue destruction. All of those factors that influence it are controlled for in a comparison with other weapons in the same situation. In other words, assuming a home invasion where a guy comes thru the bedroom window the distance and relative positions would be the same whether using a carbine, shotgun or handgun. Time to first hit should be very closely the same between the two long guns. Comparing a OO buckshot load to a 55 grain .223 you have an energy advantage and eight more holes, which gives you eight other chances to hit a vital structure and eight more places to creat rapid blood loss. Yes, the carbine gives you a faster follow up shot, but does that matter more than the wounding capacity of the first shotgun hit? I don’t think it does.

I’m not a big fan of the appeal to authority, especially when it’s a gun person who’s the authority, but I think Clint Smith sums it up pretty well when he says, “Pistols put holes in people, rifles put holes through people, but shotguns blow big chunks out of people.”
 
How so? Your pattern at 10' is 3-3.5 inches. Choke won't matter, either, at that distance.

Being a SxS, it is actually about 3-3.5" on the vertical but about 5" on the horizontal. Both barrels are "cylinder" choked (wide open) and spread enough to take out the groin area. Body armor is unlikely to cover that low and, between blood loss, shock, and excruciating pain, said perp is no longer an effective fighting force. Unlike the neck area, the groin is a lot less mobile and can't "dodge & weave".

Despite the previously cited error, you had a somewhat cogent logic for your choice (despite exsangunation being the slowest method of taking an adversary out of the fight) until the little gem I bolded in the second quote. At the word "banana" your 'operator' status was degraded to Fudd, Second Class.

"Banana" as opposed to a "stick" magazine to specify the shape. I also have a 75 round "drum" magazine for the AK. It's reserved for TEOTWAWKI. :evil:
 
Just so you know this, I have an arthritic lump on the knuckle of my RH trigger finger from firing a SxS 16 ga. both triggers at once. I don't recommend the practice for that reason, and after doing so, you now have a club to defend yourself with.

I wouldn't follow Joe Biden's advice on home defense myself.
 
Just so you know this, I have an arthritic lump on the knuckle of my RH trigger finger from firing a SxS 16 ga. both triggers at once. I don't recommend the practice for that reason, and after doing so, you now have a club to defend yourself with.

I wouldn't follow Joe Biden's advice on home defense myself.

As previously stated, there is a .357 Magnum AND an AK on the same gunrack as the SxS shottie. I drop the "club" and grab the next tool. OR, if I have a few seconds, I eject the two spent shells and put two more in the SxS.
 
I guess it depends on what you mean by CQB. If I’m going to be in combat in a military or paramilitary sense in and outside of structures, then I’ll use a self loading rifle with an optic without hesitation. I have a rifle set up and ready but this scenario occurring is pretty remote.

A much more likely scenario, is a home invasion or burglary. In this case all of the action will be indoors or in the immediate proximity of the house. For this I keep a 12 gauge 870 Police Magnum in cruiser ready with 5 rounds of #4 Buck in the tube with 3 more #4 Buck and 2 rounds of #1 Buck FliteControl in the side saddle.

I’m totally confident in my being able to repel boarders with my shotgun. I’ve been shooting 870s since I was 15 and I’m totally familiar with the manual of arms. I look upon my shotgun as something of a hand held Claymore mine.

I seriously doubt that any home invaders I face will keep coming after receiving 5 doses of #4 Buck at close range, stepping over the bodies of their comrades to get at me. Thugs that have the discipline to carry out that kind of assault are exceedingly few and far between.
Regardless, I have a Glock 17 at hand if the 870 proves lacking.
 
My 1st line defense is what I've got on me, so Glock 20SF/22/23/35/41 depending.
I have AR but its not handy to access; Mossberg 20 GA Shockwave however is quickly accessible.
One round of 20 GA buck from a few yards away looks like it might be effective, has potential.
Shockwave2.JPG
 
I’m not a big fan of the appeal to authority, especially when it’s a gun person who’s the authority, but I think Clint Smith sums it up pretty well when he says, “Pistols put holes in people, rifles put holes through people, but shotguns blow big chunks out of people.”

My wife likes this Clint Smith quote, and agrees. (She saw it, while watching one of his videos.) As I may have already mentioned, she worked 21 years as a forensic death scene investigator for the Medical Examiner’s Office, in one of the most-populous counties in the USA.
 
I really don't want this to be a discussion about overpenetration. This always comes up whenever discussing rifles for home defense. I've seen the tests of #4, 00, slugs, 5.56, and .308 on multiple walls. I get it. Instead, I want to focus on effectiveness on the adversary target at 25 yards or less and on practical considerations of each weapon. I know 5.56 carbines have been compared to 12 gauge shotguns extensively for law enforcement purposes. The carbines have clearly won preference but for a variety of reasons other than terminal effectiveness. I would rather see comparisons to larger caliber rifles, and to keep it relevant to more people, semi-auto only.

To be a little more specific, consider something like a Benelli M4 or Remington V3 Tactial vs. an AR-15 in 6.5 Grendel, .300 Hmr, or 458 Socom, or an AR-10 in .308 or a short M1A like a tanker or socom model.
A 12 ga shotgun with the right ammo has better terminal ballistics than most rifle calibers. But an AR offers other advantages over a shotgun that more than make up for that. The 5.56 is more than adequate for house defense and CQB duties, including its terminal performance.

Other AR calibers don't offer enough of an advantage over a 5.56 to offset their disadvantages (cost, recoil, reduced capacity, less knowledge tuning for reliability).
 
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