I do not know why but I have always been able to shoot wheelguns better than autos.
"Fast is fine but accuracy is final. You must learn to be slow in a hurry" ...Wyatt Earp.....
Wyatt Earp was famous for passing ordinances banning the carrying of guns, which by the way we now know were unconstitutional given the recent supreme court decisions. He was a long-time resident of California, and his effect on that issue is still felt by residents of that state today.
Can you tell I am not a fan of Wyatt Earp?
This old thread is certainly worth reading. I know I definitely shoot better using a GP100 with a 6" barrel than an LCP. However, when comparing weapons that are similar in size I shoot better, and for longer periods of time, with a semi-auto pistol. Revolvers have many fine characteristics, but generally superior performance is not one of them.