Great looking gun. I would not shoot many, if any, Plus P rounds thru it; too nice of a gun and fairly hard to find to take a chance on cracking the frame.
Very nice one. I had one that was mint. I was afraid to carry it and mess up the finish. I was afraid to shoot it cuz of all the stuff I had heard about cracked forcing cones. I ended up selling it off. Really liked it over a J frame with 6 rds and a little more to hold on to.
The Model 12 is a fantastic and, I think, underappreciated revolver. Carries very well IWB or in a shoulder holster. Carried a lot. Shot little. It's snappy because of the light weight. Well done. Yours looks like it's in excellent condition.
I have a couple blued / anodized in the carry rotation. Finish does not hold up well but not a real concern. The alloy frame does not rust. Here's a nickel 12-3 from 1981 or 1982. Like the grips on this one. Not carried often.