I know you are talking about hobby/consumer level printing here but it is entirely possible to print things other than little plastic junk. Metal SLS printing i

I know you are talking about hobby/consumer level printing here but it is entirely possible to print things other than little plastic junk. Metal SLS printing is very capable today.[1] Printing materials such as tungsten would make a very capable (however impractically expensive) bullet. [1] http://www.youtube.com/watch?v=zApmGFDA6ow&noredirect=1 http://www.youtube.com/watch?v=zApmGFDA6ow&noredirect=1