I would recommend considering this only if you're close to the end of the game, because you won't be making any other purchases. You'll meet a lot of merchants during the course of the game (they can only be found inside safe areas) and you'll be allowed to choose between several types of goods, including new guns, ammunition and additional equipment (medkits, filters etc.).Īn alternative is to insert gold ammunition into automatic weapons.
A more obvious and a more interesting solution is to use it as currency. Gold ammunition can be used in two different ways. You'll know when you've picked up golden rounds by hearing a distinctive coin sound and by seeing a number changing its value in the lower right corner of the screen (above the information about the number of normal bullets left).
There's a special kind of ammunition available in the game and this guide calls it gold ammunition.