In early '06, I started with 20 new Norma cases and 80 new Lapua cases. After two cycles, I had a neck split on a Norma and last year, I stuck a Lapua case in a kinetic puller and had to wrench it out, ruining it.
My 80 Lapua cases have between 11-13 cycles on them and are still going strong, with most of the primer pockets being firm, but a few are loosening up a bit. The remaining Norma cases have between 8-9 cycles on them.
Chris