What kind of rubber bullets did the Nazis use on protesters?

They used live ammunition

Why do you think they used rubber bullets to begin with?

Non lethal rounds were not really a thing 80 years ago.

I've never read or heard about rubber bullets being used during the 1930's to quell riots and protests.

But I have read about the use of mobile high-pressure water cannons.

That's because the Nazi in the 30s used live ammunition. Just like Pedophile Don's Nazi ICE storm troopers when they murder innocent US citizens!!!! Just ask Renee Nicole Good or Alex Pretti. Oh that's right, you can't because they were murdered in cold blood!!!!

I looked and can't find examples either