> The problem is most ranges don’t even allow drawing from a holster, let alone realistic training.
I can see the problem with a handgun.
I used to prepare for hunting season with a pellet gun in my basement. I had a cardboard box filled with newspapers and rags. The box was suspended from the ceiling by a single long cord that allowed the box the swing and rotate. A second string went from the bottom corner of the box across the basement to where I was shooting from. I would jerk the string and then give myself one second to bring the gun up, draw a bead on the target and get off a round. When I started each hunting season, I had very few meaningful hits, but after a couple of weeks, it was almost always a bullseye. Anyone can do this; it’s just practice and reflexes.
At Fort Polk and little Vietnam during the Vietnam war, we trained with BB rifles for quick shooting, and shot at targets that were about half the size of playing cards, from our waist.