Advancements in bullet design and +P loading means that 9mm is punching at or above traditional 45ACP ball ammo. A 1911 in 9mm is easy to shoot with the advantage of additional 2-3 rounds in single stack magazine compared to 45ACP, and even more in double stack magazine
How many people have practiced and participate/trained in something like IDPA or USPSA to build fundamental skills for quickly drawing from holster, shooting on the move, reloading on the move, and clearing jams and engaging multiple targets all under duress. Even by seasoned participants magazines still get fumbled, dropped, and not fully seated. If you’re carrying your extra magazine in your pocket that is another potential issue (delay &/or distraction) fighting to fish it out.
A double stack / high capacity magazine saves you from having to do a magazine change during a critical moment. I shoot a lot of single stack at the range. However, my carry is a double stack.
Lotta fake ideas come on paper, or social media, good example here! Power is so misinterpreted it's sickening! Caliber rules, If your capable of handeling it!
Trust me more deer and game fallen to factory loaded 45 Colts than 357's! That sir is a fact. I have been handgun hunting big game for over half a century. Yes killing is killing, and trust me, a 45 Colt in my Ruger Blackhawk decades ago proved how much better it was with a 1250 fps 340 grain bullet, over the best load I could get from my 44 mag with a 320 grain bullets at about the same speed, but the 44 had to be loaded a lot hotter just do that.
No not relevant for SD, first thing that Blackhawk is not what you want to shoot followup shots out of for thin skinned humans! Apples to Apples, what makes the smaller 45 acp my choice is, I can easily keep all 8 shots inside a notebook paper at 20 yards, a fer piece for true SD! I also have plenty of energy for the situation! I also can dump more of that energy faster when it hits my target, usually all of it without passing thru and not transfering it all on the subject! I also will from the very start, open a larger wound channel for more leakage!
If I used a 10mm, which would in my situation for human SD be better with a 40SW, for te reason I stated, as the 10mm more times than not will not dump all its energy as it most likey will exit at inside 20 yards, again, a long shot in a SD situation! But decades ago the 9mm proved to me little more than a glorified rapid fire 38+P. just to many ground hogs couldn't even be stopped before they made it to their holes. That chit don't happen with a larger 45 cal hole in them, obviously still a pass thru. Not the same you say,,, well I'd agree, I ain't had to kill a human yet, my bet is, it will take even more than that ground hog.
No a 44 mag few can empty as quick, plus its either a huge semi auto that needs an axle to carry, or a revolver! That is another mater I would never deal with, and in my vest on the Harley I carry an LCR, but no way would I stick it my waistband, it is the most uncomfortable gun I own to carry in anything but a pocket. The round cylinder creates a sharp pressure point, where as the 1911, is a flat, spread out over a much larger area.
Over the past 70 years I've probably carried about everything and in about every manner you can imagine. But knowing what kills, what is reliable, and what gives me the highest % chance of being successful if I ever would need it, that DW Valor is my educated answer for as good as it gets!
No an officers model, even custom will never be as reliable! about 20 years ago my Les Baer went down the road after spending nearly as much as it cost for the factory DW Valor, it shot right outa the box after cleaning, anything I could find to shoot in it from speer 200 grain hp "coffee cups" to every hp factory load I could get, roundball from several manufacturers to cast handloads with HP round ball, semi wadcutters even truncated cone, never a stovepipe are FTF, and tested over and over between as many as 1000 rounds between cleaning. That is probably why I stake my life on that cartridge and that gun! Nothing trumps reliability, especially if you know how and are personally capable of using t to its potential!
Just dont ever trade wasted worthless speed, for true stopping power, probably why 45 and 50 cal rules in Africa and Alaska for pro hunters, just quite a bit larger cartridges, but never think caliber doesn't matter, velocity is way over rated, and in my opinion a bi product!