I have no experince using nickel cases, however, a while back, I purchased 2 boxes of Federal 7MM Weatherby unprimed brass, nickel plated. One trip through the sizer die and I have my .257 Weatherby brass. Used to purchase Remington brass till they stopped making it in 7MM Weatherby. Should be interesting to see if there is any difference in brass life, but at 18.00 a hundred on closeout, I wouldn't have cared if it was plated in purple, and I figure if I get even one reloading out of it, I'm ahead of the game when it comes to Weatherby brass prices.