Hello, 30 year Sheriff sergeant. I've yet to retire, however the collection and study of cartridges fascinates me. I have taken an A$$ backward approach to collecting. I have amassed several thousand specimens- with the intent of an in depth journey to study them when I retire. yes, as result is MANY duplicates. It was hard to pick one area of study- so I've decided to collect anything and everything. Love the IAA.