I haven't had a chance to fire any rounds yet using the Nosler brass,but I have done some measurements to check consistency,and I was very impressed.I measured 20 rounds randomly,and the neck thickness was within .0015" in all 20 cases.I bought this brass after hearing many positive results from other people that had used the Nosler 280AI cases.I have however read that some early batches of Nosler brass were not nearly as consistent as later batches.As to the hardness of the brass,I will be firing some test loads in the next couple of weeks.