This evening I measured them. They varied from 1.762-1.768. this is once fired range brass all with the RP head stamp. The Agency fires the vast majority of this from a mini 14. Their SWAT team does shoot ARs so maybe that’s the variance? I’m loading for 5 rifles so I’m looking for function above anything else. I had 2 thoughts; 1) separate by length and load the 1.762 and shorter, then trim those longer, 2) trim all of it to 1.760. Thoughts?