Make of it what you will, here is a link to a report on primer cups and their thicknesss. In summary all large rifle primers are .027 thou thick, with the possibilty of Military ones being thicker
Small rifle primers mostly are 0.020 thou to.025 thou with CCI BR4's being the thickest
Dont shoot the mesenger its info from the web and as such is subject to variables.
https://www.accurateshooter.com/tech...0%B3%20thick.)
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