And since the OPs question has been answered, I dont feel bad hijacking the thread.
So why plate it? Any benefits or strictly aesthetics?
Yep, totally reloadable, just be cautious as I scratched up my carbide sizing die processing a bunch (>1000) of nickel plated 40 S&W and 357 SIG brass; the nickel is much harder than brass.
Some claim that the nickel plating is easier to see in low light (for chamber checks), it resists corrosion better than raw brass as Patriot mentioned, and it is somewhat slicker than brass, which may aid in feeding.