Truly old ammo is like 10 to 20 years old. Even then there is usually no problem with it if it was stored correctly, with a few exceptions... I've seen several threads lately where old (10-17 yrs) 40s&w actually blew up several guns. In one case the ammo was just loose in a drawer for years and the person had no packaging, so he couldn't go back to the ammo manufacturer. The gun manufacturer said it wasn't their fault so the guy was out of luck. It is good practice to keep the ammo in the original packaging until it is shot for this reason. After it is shot throw the boxes away if the ammo didn't destroy your gun.
Soldiers are dying every day to protect our freedoms. The least we can do is vote.