This is still an issue. I was able to buy and use ‘Hellfire Shot’ yesterday for Kara and yet it’s nowhere to be found today. I even flew over to Thrallmar because I figured “maybe they are just having the quartermaster sell it now” - no dice. No one is selling these bullets anymore. They are supposed to be in the game, purchasable, and useable at this point in WoW-TBC.