I have 400 rounds of FC .223 brass and 400 rounds of nickel Speer .223 brass.
The FC brass has been tumbled......the Speer brass has not.
All is once-fired from a local LEO range.
From what I can tell, it all has crimped primers. I discussed this with other members in a different thread.
Also, I have a ton of once-fired 9mm......Speer and Winchester.
PM me, or just reply here.