They on the other hand do have non-uniform lengths. If you do not trust me, have a batch of brass with exactly the same headstamp and measure their lengths - I have measured hundreds, they are doing as a truth vary in length. With the FC brass I measured, extreme https://reloading9mmammo64727.alltdesign.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-9mm-once-fired-brass-56867059