Scandium alloy revolvers from Smith and Wesson have been around for roughly a quarter of a Century now.
I bought my first model 340 back in 2001. It has never fired anything other than full power 357 Magnum ammunition. A mix of more than 7,000 rounds of 125 grain JHPs and 158 grain JHPs. The ratio is probably 65% to 35%.
I qualified with this revolver in our off duty firearm course several times, additionally I allowed about 100 of my associates to also shoot the revolver through the off duty course over the years. I would say that probably 3/4s of them also qualified
This first Scandium alloy revolver has held up very well over the years
The strength of Smith and Wesson's Scandium alloy is much closer to steel than it is to aluminum alloy.
I currently own about a dozen Smith and Wessons with Scandium alloy frames. These are chambered for the 357 Magnum, 41 Magnum, 10MM Magnum, and 45 Long Colt cartridges.
Will a Scandium alloy frame wear out sooner than a steel frame? My guess is YES. However I have not yet fired enough ammunition to reach a valid conclusion.
Truthfully I cannot recall ever buying a product based on my belief in when it would wear out. Because the lighter weight Scandium alloy frames transfer more recoil energy to the shooter, it is highly doubtful that the majority of American shooters would ever fire enough ammunition to wear one out.
Most of these, at least in the smaller frames, are not fun to shoot. The benefit of a Scandium alloy revolver is that the lightweight makes it much more pleasant to carry, which means that most civilians will carry it more frequently. While it is still strong enough to chamber and fire powerful ammunition.
Scandium frame revolvers chambered in Magnum cartridges are not going to be for everybody. And there's nothing wrong with that. This is why both Ford and Chevy make pickup trucks.
If these lightweight powerhouses are something that you can use there's no reason to be afraid that they're not going to be strong enoug
We do not carry hoping to shoot, we carry so that when we turn down the wrong corner and step into something unexpected we have a tool to help us get out of the situation.