Read books, read articles, watch videos and read posts herea n other places on-line.
The find someone at the range that's using a revolver and putting all their shots real close together.
Ask them to show you how it's done.
Honestly. I'm not trying to be cute about it.
I read and stuff about it for years as a " thrower of lead".
15 min & ~ 15 shots with the "real deal" ie: a guy that really knew his stuff did the trick.
The books and videos are fine for reading about it.
You need someone to reach around from behind you and adjust your grip, adjust your stance and critique your each and every shot before you can really get it down.