"Make haste- slowly." Wyatt Earp
The old cow town marshal was right. Not only to the presentation and usage of weapon, but in its application.
Don't know you, you don't know me. Trying to corral a topic by leaving out the most crucial aspect of handgunnery, leaves me perplexed, as to your intentions, Sir.
Which is more efficacious, being struck through the eye, bullet transiting through the brain, destroying the brain stem, with a .22LR standard velocity round, or being grazed by a .50BMG, and NOT rendering an "instant" incapacitation?
To do away with shot placement, is to seek a "silver bullet" that will do all things, for all people.
All engineering is a compromise. In combat, NOTHING is a "given." Expecting a person, weapon, munition to always act the same way, in an optimal manner, is not possible- physiologically, mentally, or mechanically.
Science(s) being what it is, allows for variables that can be repeated under controlled conditions. Combat is not controlled on a repeatable basis.
The enemy does not follow our plans- that's why he's called "the enemy."
What you should be seeking is maximum effective control, with most effective projectile. Ease of use, maximum PRACTICAL accuracy for weapon envisioned/applied, and projectile designed for velocity and weight/mass, to incapacitate target- IF shooter does his job...
All else is immaterial. Look at Ft. Hood terrorist. Used a FN57 pistol. High velocity, small diameter/low mass projectile, w/good accuracy, low recoil... Don't know how much range time the perp had, but the results of his rampage are going to become legend for results- AGAINST unarmed victims...
Luby's Cafeteria, where perp had two or more weapons, multiple reloads of semi-autos. FN57 wasn't more than a dream back then... Results? Deadly... Shooter may not have been nearly as accurate, but had bigger, slower projectiles to send into the innocents there...
Dead is dead- whether by small/fast, or large/slow.
IF it's you, the shooter, asking as to what is best, that's another question, with different criteria. What ranges, how many victims, whether or not the victims are likewise armed, and the list goes on...
In cases like Ft. Hood and Luby's, the victims were neither armed, nor expecting to be attacked with murderous intent. Until Americans are allowed to carry, without overly restrictive laws, events like these will be on the increase, as narco-terrorism, gangs, and islamofascism continue to increase.
Front sight, front sight, front sight. You shoot the weapon you use best, with the best accuracy, until the target is down. Move, or get to cover. Shift to the next target. Engage, remove from the threat. Repeat as necessary.
IF it's a .22LR Ruger, or a S&W .500, whatever you've trained with and are confident in, do your job. It isn't bullet size or velocity, unless you're shooting dangerous game, vehicles, or barriers. IT IS ALL ABOUT ACCURACY!!!
THE only exceptions are breaking contact and/or stopping a multiple assault. And WHO is going to be carrying handguns that can carry the ammunition to do that? Especially, concealed carry?
There are many, like Beretta 92s that can carry Mec-Gar 20rd AFCs, that give 21rds on board, for anti-personnel use, likewise the FN57... Small and smaller... Contrariwise, there's the Glock G21, 13rd mags w/+4 Arredondo extensions, to make 18rds of .45acp... So, small, medium, and large... Very fast, not so fast, and downright leisurely...
The above best work like any other weapon, single shot or up to full auto... With aimed fire...
Decide for yourself, what weapon meets your needs, what ammunition/projectiles will do what you require. Then forget the rest...
6.8mmSPC_Fan, out...