Cap'n Kobold
Hero
I think that you two may be talking at cross purposes. You're talking military, whereas I think Sacrosanct is talking civilian Wild West.Sure, officers were issued pistols, but, rank and file weren't often. They were using rifles and other long guns. And always did. I'm really not sure why you would think that pistols were more commonly used. Than shotguns? Sure. They didn't issue shotguns. But, if you were pulling out your pistol in a fight, the poop had already massively hit the windmill.
I'm going to stand by my statement that in the wild west, you'd see far, far more shotguns being used than pistols. But, pistols, like the sword before it, has the air of romance about it that makes it seem so common.
Pistols aren't generally a military weapon. They were issued to officers for self-defence purposes - echoes of the days when a soldiers weapon was designed to threaten the enemy but an officer's weapon was designed to threaten their soldiers.

However pistols are much more a civilian weapon than shotguns. Rifles may have actually seen more actual use, but for hunting, whereas pistols were carried to use against other people. And few sources record data on how many rabbits were shot compared to gunshot wounds on people treated by doctors. Or morticians.
Certainly in America, guns in general and pistols in particular do seem to have a definite air of romance around them.
No, 20m sounds pretty high for the effective range of an early revolver in the middle of a firefight, particularly when used by a civilian with possibly no training.You can keep thinking that, but you’re wrong. Our targets on the pistol range for qualification in the military were 25 meters away, and you had to have your shot group in a tight center mass grouping circle to qualify. So I have no idea where you’re getting your 20m figure from. Making it up, I’m guessing. Even your own citation gives a six in grouping at 50 yards.
I'm sure that you were able to achieve a higher theoretical range with a modern pistol in ideal surroundings against a stationary target that gave you time to aim. But that is not what Hussar was talking about.