Paladin looks at the base of the bullet and rejects it because it does not have a Berdan primer. It is impossible to tell whether it has a Berdan or Boxer primer unless looking down the empty cartridge or into an empty primer pocket.
Paladin incorrectly quotes Cervantes when he says "a jest that gives no pain is no jest." The correct quote is "a jest that gives pain is no jest."
Paladin pronounces the Berdan primer as one would pronounce "Burden." The correct pronunciation is ber-DAN.