They nevertheless do have non-uniform lengths. If you don't trust me, take a batch of brass with exactly the same headstamp and evaluate their lengths - I've calculated hundreds, they do as a actuality range in length. Together with the FC brass I calculated, Extraordinary distribute was around 10 thousands. https://9mm-bullet-reloading96282.tkzblog.com/37775641/9mm-reloading-bullets-things-to-know-before-you-buy