WTB- once fired .223 brass for bolt gun

Jun 22, 2017
I’m looking to buy some once fired 223 Remington brass for my bolt rifle. I’d like all the same headstamp, no military brass, nothing with a crimped primer. I’d like to buy a minimum of 500 pieces and probably 1000. Prefer Winchester or Hornady but am open to others.
Thanks for looking!