DA/SA Training

[taadski]

I believe the work you're looking for is:

Heim, C, Niebergall, E, and Schmidtbleicher, D., "Involuntary Firearms Discharge - Does The Finger Obey The Brain".


I've not been able to find it online either, except in reference.

[Dave J]

Not exactly what I was looking for, but related:

http://www.forcescience.org/fsnews/3.html

Heim ran 25 participants (13 female and 12 male, average age 25, all armed with the sensor-equipped SIG) through repetitions of 13 vigorous movements common to police work while their index finger was on the trigger.

In about 6 per cent of cases, enough trigger pressure was registered to have fired the pistol had it been uncocked (that is, mechanically set for an initial double-action trigger pull). In about 20 per cent of cases, the pressure was sufficient to have fired the gun had it been cocked (as with secondary rounds). The gun used had a 12-pound double-action trigger pull and a 5-pound pull, single-action.

This does seem to indicate a quantifiable difference in ND potential between DA and SA, which isn't really a surprise. I do not know if that is the same "German study" that I recall TLG referring to when trigger weight vs. pull length was discussed in the past. It is quite possible I am recalling his wording incorrectly, and I sure wish he was still around to clear things up.

Also FWIW, this was discussed in a thread last year too.
https://pistol-forum.com/showthread....length-of-pull

[taadski]

I believe the info is from the same (or a very related) study I posted above. There was a Police One article that referenced the work at some point too, IIRC.

[Lomshek]

Also FWIW, this was discussed in a thread last year too.
https://pistol-forum.com/showthread....length-of-pull