Something is very different about the way the Police in Germany approach situations...
You're not wrong, certainly--US police do approach things differently. Perhaps US citizens respond differently. I think there's more to think about than the very surface of the data.
[1] http://fivethirtyeight.com/datalab/police-in-england-and-wal...
America has higher handgun ownership, which is a cause of many of the police shootings.
Two-thirds of the US's annual homicides (about 12k total at the moment) are committed with handguns. Homicides with longarms aren't trivial (total firearm is around three quarters, from memory), but they're a much smaller proportion than handgun murders.
The problem is that the U.S. is very heterogeneous when it comes to crime and gun laws: Hawaii (strict gun laws, and safe) Illinois (strict gun laws, unsafe) Vermont (loose gun laws, safe) Louisiana (loose gun laws, unsafe)
German Police used only 85 bullets against people in all of 2011. [2]
Germany Population: 81 million USA population: 323 million (3.99x bigger)
So, if the USA were like Germany, Police would only use 340 bullets against people PER YEAR.
Not 398 deaths in 6 months, but 340 bullets used for an entire year!
Something is very different about the way the Police in the US approach situations.
[1] http://killedbypolice.net/
[2] http://www.thewire.com/global/2012/05/german-police-used-onl...