I'm thinking there is a lot of nickel plated factory loaded ammo out there and there must be a reason. I have noticed that the Remington RSAUM and Ultra Mag brass seems a bit on the soft side. Does anyone know how and have the equipment to test this? Anyway back to my point. I have been considering switching to nickel plated brass for the Remington RSUAM and Ultra Mag catridges. I would be running the pressure right under the point where ejector marks and flattened primers occur. Then only neck sizing the cases to 0.001 or 0.002 tension. I am thinking I may be able to squeeze a bit more out of the Remington nickel plated brass than the seemingly soft regular brass. Anyone tried this? I have never messed with nickel plated brass, what are the draw backs?