How do you make ammo?

To make ammo - you need to make the "Empty Cartridge" and "Gunpowder". These are both made in the Armory. However, you need the Forge, Chemical Table, Medical Table, and Furnace before you can make anything you need to make in the Armory table. A good rule of thumb I have learned is to make things in order on the list of production tables. You need everything in order from left to right from the top down.

Once you have made cartridges and gunpowder - you swap to the "Survival tab" And down the list, it will show AMMO - click it, and bingo - you have made Ammo. You will need 5 cartridges and 2 gunpowder to make 5 bullets.

Level up to 23

To use bullets: first put them in your inventory then get the gun in your inventory them tap/click on the gun icon in the pocket and you will shoot. OMG.