Nothing wrong with that brass at all, with neck sizing only and not going too excessive in the loads (coupled with the odd annealing) and ive got brass thats lasted in excess of 20 reloads...... if you really want good brass try and find the old Canadian tracer ammo, get rid of the projectile and the cordite and reload that puppy for a LONG time!
Ive batch my ammo to specific LE's and the brass fire forms to that rifle and then it stays with that rifle, one trick to help keep an eye on brass life is that you can look for the ring of "arrgg F**K" near the base of the case or before you get caught out is get a paperclip, straighten it out and bend one end about 2-3 mils from the end at right angles, then you can use this as a feeler on the inside of the case to give you some warning around potential case separation / case life! I cut a once fired case length way to get a better visual idea on where the case separation was happening and then used the feeler to get an idea on the stretching that was happening. i hope that made sense?
I will have a hunt around for load data as well
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