Arland, as you know, I've got a bunch of Smith's in the safe, many are full lug revolvers like your new-to-you M617.
You'll find that that extra bit of barrel and that full lug really makes it a true shooting machine. Repeat shots are a given, as that full lug really adds some muzzle weight to steady that sight picture.
My little 4" M617 will drill one ragged hole at 50 yards from a rest with either WW Power Point HP's or CCI Mini-Mag HP's all day. Mine has been a trusty field companion when shooting PD's in MT, WY, and SD, and has accounted for hundreds of the grass rats in the years I've owned her.
A good day in the rat patch a while back in N. CA at a friends ranch doing our rodent elimination thing for him. My trusty little Smith M617 on my hip as usual....
While cruising about SD, I stopped at First Stop Guns in Rapid City, SD and found a nice thumb break, tooled leather OWB rig for it for a paltry ten bucks. Couldn't pass that up.
These revolvers are just sweet companions. You're fortunate to have found one for your own. Good shooting there, Arland!