https://lawofficer.com/exclusive/off...ulis-incident/
Officer Soulis was using .40S&W Winchester 165gr Ranger Talons rated at 1160fps, and his duty weapon was a G22. The suspect sustained a total of 22 hits, 17 hits were in the mid and upper torso. It was estimated that 11 hits in the mid and upper torso were sustained by the suspect, before he ran back to his truck, put it in reverse, and was attempting to drive away before several more rounds from Soulis' G22 finished him off. The suspect only had a small amount of alcohol in his system.
The moral of the story is, even with a more energetic pistol round like the 165gr RT which travels at around 1180fps from a G22, it did not have any more stopping effect than lower velocity projectiles. What this shooting, along with MANY other shootings is that the only reliable, measurable, and even observed method of quickly stopping an attacker with a service handgun caliber is hitting something good. Turning someone into a human sprinkler works, but it takes time. The old phrase of "shot placement is king" still rings true with the larger calibers.
Now the .40S&W tends to handle a wide variety of barriers a little better than 9mm from my experiences. I agree with Dr. Roberts when he commented that a modern, soft shooting .40S&W would be a very tempting duty pistol if I were working highway patrol again.
As for the .45acp, if works if you do your part. I will throw out 2 officer involved shootings in which both perps sustained many .45acp torso hits with modern JHPs, but they required head shots to finish the job.
Officer Keith Borders OIS:
https://lawofficer.com/special-assig...ors-sacrifice/
Officer Tim Grammins OIS:
https://americanhandgunner.com/the-a...f-tim-gramins/
Here's a video of a civilian shooting where a pawn shop owner took down a perp with his .45acp 1911. The perp took two hits. The first hit him in his upper spine, and the second in the head. Needless to say, both shots hit something good, and worked quite well.
https://www.dailymail.co.uk/video/ne...r-Georgia.html
I'm currently using a .45acp duty pistol, but I've been very tempted to return to a higher capacity 9mm after injuring my strong side shoulder and performing higher volume sustained fire single handed. Now that it is doing better, I still keep the training lesson in the back of my mind that I need to be prepared to fight a gun battle when my body may not be at its best.