http://uk.news.yahoo.com/030801/80/e5epl.html Short article, unfortunately, credit to www.fark.com for leading me to it.
You dont want to be plastered and have one of these and here is why Please excuse the dodgy translation - I am sure you get the idea though. I have seen a picture of three of these beasts strapped together - apparently they can have a range of up to 200 yds and split skulls at close range - scary! Edit: links dont seem to have translated - if you google kartoffelkanone then you can have a look for yourselves
