You ordered the 4.2” S&W 686. A very good choice, ruger’s GP100 is also very good. I think I might have taken a serious look at Colt’s new King Cobra.
Meroh: PPC has a Service class that allows 4” & 4.2” revolvers.
Yes, I believe it is 5" or less. A 6" would not qualify. I was talking about a 6 round revolver not a 7 or 8 round.