I have been reloading hand gun cases that are nickel plated since 1969. Started with 38 Special/357 Magnum police range pickups and added a few calibers. I now have some 9mm and 45 ACP which are much easier to find on the ground in the dirt, rocks and stuff at the "range" where I shoot. I have some 44 Magnum nickel plated cases I have reserved for some extra heavy loads to keep them separate from my "normal" loads. I have a few 223 and 30-06 but I rarely reload them, no reason just don't. I treat all cases the same except I don't tumble the nickel cases more than just a few minutes. I have reloaded some 38/357 cases so many time the nickel has worn enough for the brass to show through. I have had no noticeable flaking (my first step in reloading is inspection. I inspect every case I reload), no extra short case life and no scratched, galled dies. I've heard of problems but my experience, loading nickel many times, mild to wild loads using Lee and RCBS dies I've not experienced any...