I asked the same question a number of months back. The answer I got is to add another step the the process with a dedicated neck sizer and a dedicated FL sizer for longevity of brass.
I use a Lee neck sizing die that came with one of their kits and a Redding FL sizing die. I haven't used them much but I can say that I do not trim anywhere near as much which proves to me there isn't as much stretching or working of the brass.
Also, you need to start annealing if you want to get more loads. I was getting about 4 loadings before I started seeing case neck cracks. When I started annealing I could extend that quite a bit. If you are careful and take your time it is possible to really extend the life of brass. Just make sure if you do anneal do not let the heat get to the case head and soften it otherwise a catastrophic failure is likely.
Dolomite
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