Each to his own, but I wonder why one would want to use cases only three times, even if pretty heavily loaded? It would seem that if they only last for three uses before the pockets get loose, one might be well above 60,000 psi. I shoot a .223 using Lapua cases pushing 40 grainers 3780. I have four hundred cases and haven't lost or discarded even one after eleven loadings. (Your experience may vary.)