I have not been able to wear any of mine out yet. The 627 in the upper left hand corner is the 27th 8 shot production revolver manufactured and I have been shooting that one for more than 13 years now.
I NEVER put a round of 38 special ammunition in a 357 Magnum revolver.
My oldest 327 is only 6 years old. It is this cute snubby.
Though I have other 327s including one of the 5" JMs and a Night Guard. The thing about scandium is that it gets the weight of N-frames into the category of K-frames. The 5" 357s are still around 32 ounces. A 4" model 19 is 34 ounces. Should that 5" N-frame be made of steel it would weigh in around 44 ounces.
I probably have more magnums through my scandium 340PD pictured in this J-frame group photo than any of my 327s. I have had the 340PD since 2001. It is approaching 7000 full magnums. I am not too sure what your definition of "Healthy Diet" is, but that is quite a few magnums for such a little revolver.