My personal Smith& Wesson AR-15/22 for P.P.S. / SD
First and foremost, people must understand that any firearm can be used for SD (Self-Defense) regardless of caliber. So, with that being said, there is no need to get into caliber debates and or weapon system debates of any kind. More often than not people will use the weapon system that they have based on their economic situation. And for many people the .22lr caliber pistol or rifle is the only thing within their economic reach.
So, we have to be aware that there will be four things that must be considered when anyone uses a .22lr caliber for SD (Self-Defense).
O.O.D.A. & M.A.R.S.
But even before we address these four pillars of using the .22lr caliber for SD; we must understand the two greatest reasons as to why the .22lr makes a great caliber for SD. And that reason lies with concealability and ease of use.
Well personally I have and will at times often use a Smith & Wesson AR-15/22lr. rifle. However, when we start talking about the ability to conceal a weapon system we need to be focusing efforts on understanding the .22lr caliber handgun. And for the record, we are not even talking about or even considering the Ruger Mark 22. And the reason for that is because that is a Marksmanship Pistol it is not a done fighting pistol. I say that because it exclamation only decreases by the Fight-Efficiency™.
When it comes to pistols in .22lr caliber the only VODA recommended pistols are as follows:
High Bore Axis. Like the trigger and the magazine release was instinctive. Rear sights too rounded for me.
A quick google search and you will many aftermarket companies that make .22lr conversion kits.
Smith and Wesson M&P
Consistent in general. Rear sights too rounded for me. Not a fan of external safeties.
Consistent in general. Rear sight too rounded.
Sig Sauer Mosquito
Consistent in general.
Consistent is general. Lower bore axis than the Walter PPQ. Magazine not instinctive to me.
Sig Sauer P226-22
Consistent in general. Rear sight too rounded.
Consistent in general
SIDE NOTE: Manufactures will round out the rear sight to decrease the likelihood of the Gun snagging on operators clothing. I prefer the rear sight to be more "edgier" for versatility when charging the weapon.
Remember the .22lr caliber pistols are general (and almost exclusively) blow-back operated. What this means is that the pistol is relying on the ejection of the case to cycle the slide which is based upon the gas expansion created by the expelled Energy or Jules. This Energy or Jules is created by the detonation of the round via the case rim. It is this gas that is push rearward because of the tight tolerances of the chamber (chamber pressure) in an effort to escape but while the gas seeks to escape by the path of least resistance it pushes the breech back cycling the slide.
When it comes to .22lr caliber ammunition, we should be looking specifically for the grain or actual bullet weight. This is significant because we’re talking about using a .22lr caliber round for a handgun for conceal carry purposes and not necessarily a rifle. This is important to understand because the .22lr pistol will not be able to take the full advantage of the .22lr round like a rifle would. This is because of the differences in barrel length.
RULE OF THUMB: the longer the barrel the more velocity we get out of the .22lr round or bullet (or any bullet for that matter).
As far as ammunition selection, what we are looking for is a .22lr, 40 grains, copper plated/jacketed, hollow point. This would be the optimum round for this SD application. Raw lead bullets will also do the job as well but if we can preserve the barrel and lengthen its life; why not. I'm mean the .22lr is already cheap as shit.
But even more than that, by using copper plated/jacketed hollow point ammunition we are looking to create the deepest wound channel possible with the most efficient, predictable rate of expansion that is possible by using this kind of ammunition. With contrasting larger calibers, this is not as significant because of the close proximity of the Gun-Fight. But remember we are taking about deploying the .22lr in P.P.S. (Personal Protection Solution) as we are already at a disadvantage because of caliber size. Remember we must by default compensate, and we accomplish this by being selective of ammunition; it increases our Fight-Efficiency™.
When it comes to round count, understand that you will need to carry extra magazines. For something simple (a very formal or Black Tie affair) one magazine MIGHT be OK. But to truly be effective as far as Gun-Fighting you need to carry multiple magazines of .22lr. Normally I always advise want to clients to give little less than five rounds per bad guy, but the rules change when we start talking about the use of .22lr for SD.
You may need to deploy 7 to 9 rounds per bad guy. Remember handguns of any caliber do not make a good man stoppers. So, with the .22lr caliber rounds being smaller we need to "compensate" A little more than usual. Magazine capacity will vary from firearm model will vary but the rounds you expend will not.
When it comes to shot placement and using the .22lr caliber handgun for SD it is exceptionally crucial. For engagements that are within 0-5 meters or 0-16 feet we exclusively demand 7-9 rounds to the upper chest and head; that's right shoot'em in the face. Remember we are shooting in SD and we need to shut down our aggressor as quickly and efficiently as possible. This means that your Fight-Efficiency™ game needs to be on point. This is not a time to play, as this is .22lr.
Remember we are looking to cause or induce incapacitation as quickly as possible on our subject(s). Shots to the head and face will increase the likelihood of shutting down the CNS (central nervous system). Shots to the neck will disrupt breathing, increase the likelihood of stirring a major artery thus, the subject will lose blood due to uncontrolled hemorrhage. If the subject loses roughly 35% of their blood they will go into shock.
Shots placed to the upper thoracic cavity of a subject will not only interrupt their assault it will also slow them down. This "slow down" will also most likely introduce fluid (blood) into the lungs. VODA recommends if possible concentrating the shots into the heart or into the upper thoracic cavity of the subject.
In combining all this information registering shot placement, we are looking cause major disruption into what a paramedic revealed to me as "ABCDE". Which is an acronym for an assessment that they use on a subject when that use is under care by them which stands for the following:
Seeing it through the lens of the Gun-Fighter: we seek to cause damage to the airway to disrupt breathing, rupture vessels and arteries to disrupt circulation and we seek to disable the subject by exposing them to long strings of fire into specific areas with the intention of shutting down the CNS (Central Nervous System).
O.O.D.A. & M.A.R.S.
Remember you must be to quickly cycle through both the O.O.D.A. and M.A.R.S. Cybernetic Feedback Loop processes simultaneously in order to ensure Fight-Efficiency™.
Lastly to wrap things up, i must mention that there are a plethora of other .22lr platforms to consider. The choices and configurations are vast; some .22lr platforms include: AR-15, AK-47, sub-machine gun, and shotgun. Different manufactures will set up these weapon systems differently. Find one to your likening as well as your P.P.S. needs. The .22lr is very good on the economic side of the Gun Game as well as a great way to train, but it's also a great Conceal Carry caliber as well as a Personal Protection Solution.
Smith and Wesson AR-15/22 Pistol
This is just to give you a sense of whats out there in the Gun Game. Train and remember M.A.R.S..