*Waits for a map, because I lost the overview*
Also...
But i think it's because those bullet just entred in someone's body, but didnt get out, making hard problems for medics .
No. actually its a more human kill. Sure they are supposed to not leave the body, but they also leave a greater wound-channel, increasing the chances of a shock and greater bleeding. So they are still in use in hunting and sporting.
The reason why they are forbidden is that Germany dicked out about the UK using them. They are kinda OP on shorter ranges.