How come rocket launchers/rpg’s can only be fired once?

Question

I saw video about rocket launchers like javelins and rpgs that said they can only be fired once, why so?

In: Technology

Answer 1

It depends, the launch tube is generally rather cheap in comparison to the rocket launched so you might as well have a new tube with each missile. The are some weapons like the RPG 7 where multiple rockets are fired from the same tube in part due to the rocket being cheap.