I took the course some 25 years ago (Mas must be getting old...
) and one student used a Beretta or Browning hi cap 380. I used my Python on one and a 1911 on the LFI-II. Mas used "Fluffy", a mod 66 with the magna-trigger safety system.
What I remember most was terminal ballistics, if someone tells you suck on a shotgun barrel or makes you kneel, go for broke. I think I learned as much about avoiding a situation requiring use of lethal force as actually using it. I can still remember the grimace Mas would get on his face every time he'd repeat "Shoot for the center of Mass".