10mm: I have a little over 800 brass casings. Most are cheaper target ammo but 100 or so are high-end Hornady or similar casings. $80 for all of it. That's $0.10 per round. You will not find a better deal than that anywhere.
9mm: A little over 300 brass casings. Mostly cheap target ammo. Asking $30. $0.10 per round.
$100 if you buy all of it.
Located in Pocatello.