I'm also new to revolver, and this sounds like a good idea for some of the fundamentals (WH, SH, etc.). I shoot a 5" 625, and the 617 appears to be offered in 4" & 6". Which one would someone with experience recommend?
I think I'd like the accuracy of the longer sight radius, but the 4" might force you to pay more attention to those things on top of the barrel at either end. I would also assume that the 4" may be closer to the weight of a 5" 625.