Normally, it shouldn't be necessary, but I suggest you try annealing the brass before you load it the first time, and see what happens. Keep in mind, annealing isn't rocket science, but indeed, it must be done correctly or nothing is gained, and in fact, a negative effect could be produced. Once I started annealing (multiple calibers/cartridges), I had excellent gains in case life, having very few neck splits in any cartridge prior to a dozen reloads, often quite a few more. I generally anneal at about every 6th or 7th loading. Now, my brass usually expires for something other than neck splits.