so... i decided to learn how to shoot. i have someone who can teach me but i want to supply ammunition. what kind of prices should i expect? this is 9 millimeter gun. how much for a box of, say, a 100 bullets? do they come in boxes of 100 at all? is ammunition easily available in a gun shop or i need to place order? i know i will need a license to buy it, right? does it have to be a license for a 9 millimeter gun or just any gun?