"How do you know what you think you know?" is one of my most favorite questions, ever.
I don't have a study handy to point to, but I think FSRC has documented a bunch of this stuff with various officers and untrained volunteers. Sorry, no link handy but I believe that may be the most readily available information that is most robustly obtained and documented.
I know I brought my own times into it, but I don't think that invalidates the basic point. I'm not that special. Most people in our classes are able to plug A-zone hits at 7 yards in under 0.50 seconds from ready, repeatedly. That's just a continuation of my mentor/predecessor's standard, which he derived from his prior agency standards combined with some other training standards he had been exposed to. A hit from ready to an 8" circle at 7 yards has been a core skill at the Rogers Shooting School for ~30 years I think. People routinely do it. I don't mean untrained people, but I do mean people of a very wide range of training background get it done with not a whole lot of work.
So that's where I know it from - my own personal experience in training and training others, as well as that standard being used by more than one training school.
How long it takes to fire a shot from on sights and on trigger is something again that I think has been documented by FSRC, and again where I know it from is my own experience training and shooting and seeing others do the same. This is not something I've seen practiced nearly as much as engaging from the ready, so my knowledge of this point is less robust but I still think valid and correct. You can see some self-reporting on this task from the DotW 110: Jerk The Trigger, located here:
https://pistol-forum.com/showthread....k-The-Trigger&
In that DotW, people had to fire accurate shots starting on sights and on trigger (as an exercise of shooting mechanics, not as a recommended tactical procedure.) Some people reported their specific times. I skimmed the thread just now, and it looks like those times ranged from about 0.15 to 0.49. With just a little instruction and practice, I think all or nearly all of the posters in that thread could be be hitting As from ready at 7 yards in under 0.50 seconds if they couldn't do it already, and I bet a bunch of them can. Actually, that might make a good DotW itself...
So what about this, BBI? Just looking to hear more about what you do/your experience/etc. Thanks!